As advised, I removed the broken installation I obtained via sage -upgrade and
installed sage 3.1.2.
Plotting worked nicely, until roughly 5 minutes ago. Now I get:
-------------------------------------------------------------------------------
[EMAIL PROTECTED]:~$ sage
----------------------------------------------------------------------
| SAGE Version 3.1.2, Release Date: 2008-09-19 |
| Type notebook() for the GUI, and license() for information. |
----------------------------------------------------------------------
sage: plot(sin(x), (x,-1,1))
/home/martin/sage-3.1.2-ubuntu32bit-i686-intel-i686-Linux/local/bin/sage-sage:
line 215: 21171 Illegal instruction sage-ipython "$@" -c
"$SAGE_STARTUP_COMMAND;"
-------------------------------------------------------------------------------
Note: the only thing I did before was to try SymPy, since I wanted to try out
it's plotting capabilities. Now, I'm lucky and have the complete history still
on my screen, find it below.
Help would be very much appreciated.
Is it a "no no" to import SymPy?
Martin
----------------------------------------------------------------------
| SAGE Version 3.1.2, Release Date: 2008-09-19 |
| Type notebook() for the GUI, and license() for information. |
----------------------------------------------------------------------
max(x,5)sage: max(x,5)
x
Parent: Symbolic Ring
sage: max(pi,e)
pi
Parent: Symbolic Ring
sage: max(x,y)
---------------------------------------------------------------------------
NameError Traceback (most recent call last)
/home/martin/<ipython console> in <module>()
NameError: name 'y' is not defined
sage: var('y')
y
Parent: Symbolic Ring
sage: max(x,y)
x
Parent: Symbolic Ring
sage: -4 < 65
True
sage: x < <
------------------------------------------------------------
File "<ipython console>", line 1
x < <
^
SyntaxError: invalid syntax
sage: x < y
x < y
sage: bool(x < y)
False
sage: bool(y < x)
False
sage: bool(y < x)
bool
sage: bool
bool
sage: te
test.fri test.fri~ texPatchDiscussion texput.dvi
text.html
test.fri.axh tests texPatchDiscussion~ texput.log
text3d
test.fri.input tetrahedron texput.aux text
text_control
sage: tes
test.fri test.fri.axh test.fri.input test.fri~ tests
sage: test?
Object `test` not found.
sage: tests?
Type: module
Base Class: <type 'module'>
String Form: <module 'sage.tests.all' from
'/home/martin/sage-3.1.2-ubuntu32bit-i686-intel-i686-Linux/local/lib/python2.5/site-packages/sage/tests/all.pyc'>
Namespace: Interactive
File:
/home/martin/sage-3.1.2-ubuntu32bit-i686-intel-i686-Linux/local/lib/python2.5/site-packages/sage/tests/all.py
Docstring:
nodoctest
sage: bool(y < y^2)
False
sage: bool(y < y+1)
True
sage: bool(y < -y)
False
sage: ?bool
Type: type
Base Class: <type 'type'>
String Form: <type 'bool'>
Namespace: Python builtin
Docstring:
bool(x) -> bool
Returns True when the argument x is true, False otherwise.
The builtins True and False are the only two instances of the class bool.
The class bool is a subclass of the class int, and cannot be subclassed.
sage: ?<
------------------------------------------------------------
File "<ipython console>", line 1
?<
^
SyntaxError: invalid syntax
sage: <?
Object `<` not found.
sage: bool(y < -y)
False
sage: bool(y^2 < (y+1)^2)
False
sage: max(y^2, (y+1)^2)
y^2
Parent: Symbolic Ring
sage: max(0, (y-1)^2)
0
Parent: Integer Ring
sage: max(0, (y+1)^2)
0
Parent: Integer Ring
sage: max(0, y)
0
Parent: Integer Ring
sage: max(y, (y+1)^2)
y
Parent: Symbolic Ring
sage: -y+ (y+1)^2
(y + 1)^2 - y
Parent: Symbolic Ring
sage: expand(-y+ (y+1)^2)
y^2 + y + 1
Parent: Symbolic Ring
sage: expand(-2*y+ (y+1)^2)
y^2 + 1
Parent: Symbolic Ring
sage: max(2*y, (y+1)^2)
2*y
Parent: Symbolic Ring
sage: {max(min(sin(1/x)*exp(-1/x),0.5),-0.5)
....: )
------------------------------------------------------------
File "<ipython console>", line 2
)
^
SyntaxError: invalid syntax
sage: max(min(sin(1/x)*exp(-1/x),0.5),-0.5))
------------------------------------------------------------
File "<ipython console>", line 1
max(min(sin(Integer(1)/x)*exp(-Integer(1)/x),RealNumber('0.5')),-RealNumber('0.5')))
^
SyntaxError: invalid syntax
sage: max(min(sin(1/x)*exp(-1/x),0.5),-0.5)
sin(1/x)*e^(-(1/x))
Parent: Symbolic Ring
sage: min(max(sin(1/x)*exp(-1/x),0.5),-0.5)
sin(1/x)*e^(-(1/x))
Parent: Symbolic Ring
sage: def f = min(max(sin(1/x)*exp(-1/x),0.5),-0.5)
------------------------------------------------------------
File "<ipython console>", line 1
def f =
min(max(sin(Integer(1)/x)*exp(-Integer(1)/x),RealNumber('0.5')),-RealNumber('0.5'))
^
SyntaxError: invalid syntax
sage: ?def
Object `def` not found.
sage: def
def
sage: def?
Object `def` not found.
sage: def f: min(max(sin(1/x)*exp(-1/x),0.5),-0.5)
------------------------------------------------------------
File "<ipython console>", line 1
def f:
min(max(sin(Integer(1)/x)*exp(-Integer(1)/x),RealNumber('0.5')),-RealNumber('0.5'))
^
SyntaxError: invalid syntax
sage: def f x: min(max(sin(1/x)*exp(-1/x),0.5),-0.5)
------------------------------------------------------------
File "<ipython console>", line 1
def f x:
min(max(sin(Integer(1)/x)*exp(-Integer(1)/x),RealNumber('0.5')),-RealNumber('0.5'))
^
SyntaxError: invalid syntax
sage: def f x = min(max(sin(1/x)*exp(-1/x),0.5),-0.5)
------------------------------------------------------------
File "<ipython console>", line 1
def f x =
min(max(sin(Integer(1)/x)*exp(-Integer(1)/x),RealNumber('0.5')),-RealNumber('0.5'))
^
SyntaxError: invalid syntax
sage: def f(x): min(max(sin(1/x)*exp(-1/x),0.5),-0.5)
....: )
------------------------------------------------------------
File "<ipython console>", line 2
)
^
SyntaxError: invalid syntax
sage: def f(x): min(max(sin(1/x)*exp(-1/x),0.5),-0.5))
------------------------------------------------------------
File "<ipython console>", line 1
def f(x):
min(max(sin(Integer(1)/x)*exp(-Integer(1)/x),RealNumber('0.5')),-RealNumber('0.5')))
^
SyntaxError: invalid syntax
sage: def f(x):
....: min(max(sin(1/x)*exp(-1/x),0.5),-0.5))
------------------------------------------------------------
File "<ipython console>", line 2
min(max(sin(Integer(1)/x)*exp(-Integer(1)/x),RealNumber('0.5')),-RealNumber('0.5')))
^
SyntaxError: invalid syntax
sage: def f(x):
....: x
....:
sage: f(5)
sage: ex =f(5)
sage: ex
sage: def f(x):
....: return x
....:
sage: f(5)
5
Parent: Integer Ring
sage: f=lambda x: max(min(sin(1/x)*exp(-1/x),0.5),-0.5)
sage: f
<function <lambda> at 0xa15ad84>
sage: f(x)
sin(1/x)*e^(-(1/x))
Parent: Symbolic Ring
sage: f(4)
e^(-1/4)*sin(1/4)
Parent: Symbolic Ring
sage: f(4.0)
0.192678397202388
Parent: Real Field with 53 bits of precision
sage: integrate((x^2+2*x+1+(3*x+1)*sqrt(x+log x))/(x*sqrt(x+log
x)*(x+sqrt(x+log x))),x)
------------------------------------------------------------
File "<ipython console>", line 1
integrate((x**Integer(2)+Integer(2)*x+Integer(1)+(Integer(3)*x+Integer(1))*sqrt(x+log
x))/(x*sqrt(x+log x)*(x+sqrt(x+log x))),x)
^
SyntaxError: invalid syntax
sage:
integrate((x^2+2*x+1+(3*x+1)*sqrt(x+log(x)))/(x*sqrt(x+log(x))*(x+sqrt(x+log(x)))),x)
-integrate(((3*x + 1)*log(x)^5 + (-13*x^3 + 9*x^2 + 4*x)*log(x)^4 + (22*x^5 -
38*x^4 + 10*x^3 + 6*x^2)*log(x)^3 + (-18*x^7 + 50*x^6 - 42*x^5 + 6*x^4 +
4*x^3)*log(x)^2 + (7*x^9 - 27*x^8 + 38*x^7 - 22*x^6 + 3*x^5 + x^4)*log(x) -
x^11 + 5*x^10 - 10*x^9 + 10*x^8 - 5*x^7 + x^6)/(5*x^2*log(x)^5 + sqrt(log(x) +
x)*(25*x^3*log(x)^4 + (100*x^5 + 100*x^4)*log(x)^3 + (110*x^7 + 300*x^6 +
150*x^5)*log(x)^2 + (20*x^9 + 220*x^8 + 300*x^7 + 100*x^6)*log(x) + x^11 +
20*x^10 + 110*x^9 + 100*x^8 + 25*x^7) + (60*x^4 + 25*x^3)*log(x)^4 + (126*x^6 +
240*x^5 + 50*x^4)*log(x)^3 + (60*x^8 + 378*x^7 + 360*x^6 + 50*x^5)*log(x)^2 +
(5*x^10 + 120*x^9 + 378*x^8 + 240*x^7 + 25*x^6)*log(x) + 5*x^11 + 60*x^10 +
126*x^9 + 60*x^8 + 5*x^7), x) + integrate(((80*x^2 + 60*x + 20)*log(x) + 32*x^4
+ 124*x^3 + 80*x^2 + 20*x)/(25*x*log(x)^2 + (50*x^3 + 50*x^2)*log(x) + 5*x^5 +
50*x^4 + 25*x^3), x) + 3*log(x)/5 - 1/(5*x)
Parent: Symbolic Ring
sage: import sympy
sage: symp
sympow sympy
sage: sympy.
Display all 358 possibilities? (y or n)
sage: sympy.in
sympy.integrals sympy.integrate sympy.intersection sympy.interval
sage: sympy.integ
sympy.integrals sympy.integrate
sage: sympy.integrate((x^2+2*x+1+(3*x+1)*sqrt(x+log x))/(x*sqrt(x+log
x)*(x+sqrt(x+log x))),x)
------------------------------------------------------------
File "<ipython console>", line 1
sympy.integrate((x**Integer(2)+Integer(2)*x+Integer(1)+(Integer(3)*x+Integer(1))*sqrt(x+log
x))/(x*sqrt(x+log x)*(x+sqrt(x+log x))),x)
^
SyntaxError: invalid syntax
sage: sympy.integrate?
sage:
sympy.integrate((x^2+2*x+1+(3*x+1)*sqrt(x+log(x)))/(x*sqrt(x+log(x))*(x+sqrt(x+log(x)))),x)
---------------------------------------------------------------------------
ValueError Traceback (most recent call last)
/home/martin/<ipython console> in <module>()
/home/martin/sage-3.1.2-ubuntu32bit-i686-intel-i686-Linux/local/lib/python2.5/site-packages/sympy/utilities/decorator.py
in threaded_decorator(expr, *args, **kwargs)
53 return Add(*[ func(f, *args, **kwargs) for f in
expr.args ])
54 else:
---> 55 return func(expr, *args, **kwargs)
56
57 threaded_decorator.__doc__ = func.__doc__
/home/martin/sage-3.1.2-ubuntu32bit-i686-intel-i686-Linux/local/lib/python2.5/site-packages/sympy/integrals/integrals.py
in integrate(*args, **kwargs)
310
311 """
--> 312 integral = Integral(*args, **kwargs)
313
314 if isinstance(integral, Integral):
/home/martin/sage-3.1.2-ubuntu32bit-i686-intel-i686-Linux/local/lib/python2.5/site-packages/sympy/integrals/integrals.py
in __new__(cls, function, *symbols, **assumptions)
40 continue
41
---> 42 raise ValueError("Invalid integration variable or
limits")
43 else:
44 # no symbols provided -- let's compute full antiderivative
ValueError: Invalid integration variable or limits
sage: sympy.var('x')
x
sage:
sympy.integrate((x^2+2*x+1+(3*x+1)*sqrt(x+log(x)))/(x*sqrt(x+log(x))*(x+sqrt(x+log(x)))),x)
2*log(x + (x + log(x))**(1/2)) + 2*(x + log(x))**(1/2)
sage: sym
symbolic_expression symmetric symmetrica sympow
sympy
sage: symp
sympow sympy
sage: sympy.
Display all 358 possibilities? (y or n)
sage: sympy.g
sympy.gamma sympy.gcd sympy.gcdex sympy.generate sympy.geometry
sympy.gosper sympy.groebner sympy.gruntz
sage: sympy.gamma?
Type: FunctionClass
Base Class: <class 'sympy.core.function.FunctionClass'>
String Form: gamma
Namespace: Interactive
File:
/home/martin/sage-3.1.2-ubuntu32bit-i686-intel-i686-Linux/local/lib/python2.5/site-packages/sympy/functions/special/gamma_functions.py
Docstring:
x.__init__(...) initializes x; see x.__class__.__doc__ for signature
sage: sympy.gamma(x)
gamma(x)
sage: diff(sympy.gamma(x),x)
---------------------------------------------------------------------------
AttributeError Traceback (most recent call last)
/home/martin/<ipython console> in <module>()
/home/martin/sage-3.1.2-ubuntu32bit-i686-intel-i686-Linux/local/lib/python2.5/site-packages/sage/calculus/functional.py
in derivative(f, *args, **kwds)
131 pass
132 if not isinstance(f, SymbolicExpression):
--> 133 f = SR(f)
134 return f.derivative(*args, **kwds)
135
/home/martin/sage-3.1.2-ubuntu32bit-i686-intel-i686-Linux/local/lib/python2.5/site-packages/sage/calculus/calculus.py
in __call__(self, x)
449 msg, s, pos = err.args
450 raise TypeError, "%s: %s !!! %s" % (msg, s[:pos],
s[pos:])
--> 451 return self._coerce_impl(x)
452
453 def _coerce_impl(self, x):
/home/martin/sage-3.1.2-ubuntu32bit-i686-intel-i686-Linux/local/lib/python2.5/site-packages/sage/calculus/calculus.py
in _coerce_impl(self, x)
499 from sympy.core.basic import Basic
500 if isinstance(x, Basic):
--> 501 return self(x._sage_())
502 else:
503 raise TypeError, "cannot coerce type '%s' into a
SymbolicExpression."%type(x)
AttributeError: 'gamma' object has no attribute '_sage_'
sage: (sympy.gamma(x)).diff
<bound method gamma.diff of gamma(x)>
sage: (sympy.gamma(x)).diff()
gamma(x)
sage: (sympy.gamma(x)).diff(x)
gamma(x)*polygamma(0, x)
sage: (sympy.gamma(x)).diff()
gamma(x)
sage: (sympy.gamma(x)).diff?
Object `(sympy.gamma(x)).diff` not found.
sage: sympy.diff?
Type: function
Base Class: <type 'function'>
String Form: <function diff at 0xa2b795c>
Namespace: Interactive
File:
/home/martin/sage-3.1.2-ubuntu32bit-i686-intel-i686-Linux/local/lib/python2.5/site-packages/sympy/core/multidimensional.py
Definition: sympy.diff(*args, **kwargs)
Docstring:
Differentiate f with respect to x
It's just a wrapper to unify .diff() and the Derivative class,
it's interface is similar to that of integrate()
see
http://documents.wolfram.com/v5/Built-inFunctions/AlgebraicComputation/Calculus/D.html
sage: sympy.D
sympy.Derivative sympy.Dij
sage: sympy.Derivative?
Type: BasicMeta
Base Class: <class 'sympy.core.basic.BasicMeta'>
String Form: <class 'sympy.core.function.Derivative'>
Namespace: Interactive
File:
/home/martin/sage-3.1.2-ubuntu32bit-i686-intel-i686-Linux/local/lib/python2.5/site-packages/sympy/core/function.py
Docstring:
Carries out differentation of the given expression with respect to
symbols.
expr must define ._eval_derivative(symbol) method that returns
the differentation result or None.
Examples:
Derivative(Derivative(expr, x), y) -> Derivative(expr, x, y)
Derivative(expr, x, 3) -> Derivative(expr, x, x, x)
sage: sympy.diff()
---------------------------------------------------------------------------
TypeError Traceback (most recent call last)
/home/martin/<ipython console> in <module>()
/home/martin/sage-3.1.2-ubuntu32bit-i686-intel-i686-Linux/local/lib/python2.5/site-packages/sympy/core/multidimensional.py
in wrapper(*args, **kwargs)
125 result = apply_on_element(wrapper, args, kwargs, n)
126 return result
--> 127 return f(*args, **kwargs)
128 wrapper.__doc__ = f.__doc__
129 wrapper.__name__ = f.__name__
TypeError: diff() takes at least 2 arguments (0 given)
sage: sympy.diff(x)
---------------------------------------------------------------------------
TypeError Traceback (most recent call last)
/home/martin/<ipython console> in <module>()
/home/martin/sage-3.1.2-ubuntu32bit-i686-intel-i686-Linux/local/lib/python2.5/site-packages/sympy/core/multidimensional.py
in wrapper(*args, **kwargs)
125 result = apply_on_element(wrapper, args, kwargs, n)
126 return result
--> 127 return f(*args, **kwargs)
128 wrapper.__doc__ = f.__doc__
129 wrapper.__name__ = f.__name__
TypeError: diff() takes at least 2 arguments (1 given)
sage: x.diff()
x
sage: x.diff(x)
1
sage: x.diff()
x
sage: x.diff(x,x)
0
sage: (x^3).diff(x,x,x)
6
sage: symp
sympow sympy
sage: sympy.
Display all 358 possibilities? (y or n)
sage: sympy.m
sympy.make_list sympy.min_ sympy.mr
sympy.multinomial
sympy.matrices sympy.monomial sympy.mr_safe
sympy.multinomial_coefficients
sympy.matrix2numpy sympy.monomial_count sympy.msolve
sympy.multiplicity
sympy.max_ sympy.monomials sympy.mul
sympy.memoization sympy.mpmath
sympy.multidimensional
sage: sympy.ma
sympy.make_list sympy.matrices sympy.matrix2numpy sympy.max_
sage: sympy.max?
Object `sympy.max` not found.
sage: sympy.max_?
Type: FunctionClass
Base Class: <class 'sympy.core.function.FunctionClass'>
String Form: max_
Namespace: Interactive
File:
/home/martin/sage-3.1.2-ubuntu32bit-i686-intel-i686-Linux/local/lib/python2.5/site-packages/sympy/functions/elementary/miscellaneous.py
Docstring:
x.__init__(...) initializes x; see x.__class__.__doc__ for signature
sage: sympy.max_(x,y)
max_(x, y)
sage: sympy.max_(x,2*x)
max_(x, 2*x)
sage: sympy.p
sympy.partitions_ sympy.poly_groebner sympy.polynomial
sympy.prevprime
sympy.pdfview sympy.poly_half_gcdex sympy.polynomials
sympy.prime
sympy.pdiv sympy.poly_lcm sympy.polys
sympy.primefactors
sympy.pi sympy.poly_pdiv sympy.polysys
sympy.primepi
sympy.plotting sympy.poly_pquo sympy.power
sympy.primerange
sympy.pngview sympy.poly_prem sympy.powsimp
sympy.primetest
sympy.point sympy.poly_quo sympy.pprint
sympy.print_gtk
sympy.pollard_pm1 sympy.poly_rem
sympy.pprint_try_use_unicode sympy.print_python
sympy.pollard_rho sympy.poly_resultant
sympy.pprint_use_unicode sympy.print_tree
sympy.poly_decompose sympy.poly_sqf sympy.pquo
sympy.printing
sympy.poly_div sympy.poly_sturm sympy.prem
sympy.product
sympy.poly_factors sympy.poly_subresultants sympy.pretty
sympy.products
sympy.poly_gcd sympy.polygamma sympy.pretty_print
sympy.python
sympy.poly_gcdex sympy.polygon sympy.preview
sage: sympy.plotting
sympy.plotting
sage: sympy.plotting?
Type: module
Base Class: <type 'module'>
String Form: <module 'sympy.plotting' from
'/home/martin/sage-3.1.2-ubuntu32bit-i686-intel-i686-Linux/local/lib/python2.5/site-packages/sympy/plotting/__init__.pyc'>
Namespace: Interactive
File:
/home/martin/sage-3.1.2-ubuntu32bit-i686-intel-i686-Linux/local/lib/python2.5/site-packages/sympy/plotting/__init__.py
Docstring:
Plotting module that can plot 2D and 3D functions
sage: sympy.plotting(x,x,0,1)
---------------------------------------------------------------------------
TypeError Traceback (most recent call last)
/home/martin/<ipython console> in <module>()
TypeError: 'module' object is not callable
sage: sympy.plotting(x,(x,0,1))
---------------------------------------------------------------------------
TypeError Traceback (most recent call last)
/home/martin/<ipython console> in <module>()
TypeError: 'module' object is not callable
sage: sympy.plotting?
Type: module
Base Class: <type 'module'>
String Form: <module 'sympy.plotting' from
'/home/martin/sage-3.1.2-ubuntu32bit-i686-intel-i686-Linux/local/lib/python2.5/site-packages/sympy/plotting/__init__.pyc'>
Namespace: Interactive
File:
/home/martin/sage-3.1.2-ubuntu32bit-i686-intel-i686-Linux/local/lib/python2.5/site-packages/sympy/plotting/__init__.py
Docstring:
Plotting module that can plot 2D and 3D functions
sage: x.plotting
---------------------------------------------------------------------------
AttributeError Traceback (most recent call last)
/home/martin/<ipython console> in <module>()
AttributeError: 'Symbol' object has no attribute 'plotting'
sage: x.plotting()
---------------------------------------------------------------------------
AttributeError Traceback (most recent call last)
/home/martin/<ipython console> in <module>()
AttributeError: 'Symbol' object has no attribute 'plotting'
sage: plotting??
Object `plotting` not found.
sage: sympy.plotting??
Type: module
Base Class: <type 'module'>
String Form: <module 'sympy.plotting' from
'/home/martin/sage-3.1.2-ubuntu32bit-i686-intel-i686-Linux/local/lib/python2.5/site-packages/sympy/plotting/__init__.pyc'>
Namespace: Interactive
File:
/home/martin/sage-3.1.2-ubuntu32bit-i686-intel-i686-Linux/local/lib/python2.5/site-packages/sympy/plotting/__init__.py
Source:
"""Plotting module that can plot 2D and 3D functions
"""
try:
try:
from ctypes import *
except:
raise ImportError("ctypes is required for plotting.\n'easy_install
ctypes' or visit http://sourceforge.net/projects/ctypes/";)
def Plot(*args, **kwargs):
import plot
return plot.Plot(*args, **kwargs)
except Exception, e:
def Plot(*args, **kwargs):
raise e
from textplot import textplot
sage: sympy.P
sympy.Plot sympy.Poly sympy.PolynomialError
sympy.PrecisionExhausted
sympy.Point sympy.Polygon sympy.Pow
sympy.Product
sage: sympy.Plot?
Type: function
Base Class: <type 'function'>
String Form: <function Plot at 0xa4068ec>
Namespace: Interactive
File:
/home/martin/sage-3.1.2-ubuntu32bit-i686-intel-i686-Linux/local/lib/python2.5/site-packages/sympy/plotting/__init__.py
Definition: sympy.Plot(*args, **kwargs)
Docstring:
x.__init__(...) initializes x; see x.__class__.__doc__ for signature
sage: x
x
sage: parent(x)
<class 'sympy.core.symbol.Symbol'>
sage: plot(x,(x,0,1))
---------------------------------------------------------------------------
ValueError Traceback (most recent call last)
/home/martin/<ipython console> in <module>()
/home/martin/sage-3.1.2-ubuntu32bit-i686-intel-i686-Linux/local/lib/python2.5/site-packages/sage/plot/plot.py
in plot(funcs, *args, **kwds)
3570 # if there is one extra arg, then it had better be a tuple
3571 elif n == 1:
-> 3572 G = _plot(funcs, *args, **kwds)
3573 elif n == 2:
3574 # if there are two extra args, then pull them out and pass them
as a tuple
/home/martin/sage-3.1.2-ubuntu32bit-i686-intel-i686-Linux/local/lib/python2.5/site-packages/sage/plot/plot.py
in _plot(funcs, xrange, parametric, polar, label, randomize, **kwds)
3596
3597 if not is_fast_float(funcs):
-> 3598 funcs = fast_float(funcs)
3599
3600 #parametric_plot will be a list or tuple of two functions (f,g)
/home/martin/fast_eval.pyx in sage.ext.fast_eval.fast_float
(sage/ext/fast_eval.c:7031)()
/home/martin/sage-3.1.2-ubuntu32bit-i686-intel-i686-Linux/local/lib/python2.5/site-packages/sympy/core/basic.py
in __float__(self)
1863 return float(result)
1864 else:
-> 1865 raise ValueError("Symbolic value, can't compute")
1866
1867 def __complex__(self):
ValueError: Symbolic value, can't compute
sage: plot(x,(0,1))
---------------------------------------------------------------------------
ValueError Traceback (most recent call last)
/home/martin/<ipython console> in <module>()
/home/martin/sage-3.1.2-ubuntu32bit-i686-intel-i686-Linux/local/lib/python2.5/site-packages/sage/plot/plot.py
in plot(funcs, *args, **kwds)
3570 # if there is one extra arg, then it had better be a tuple
3571 elif n == 1:
-> 3572 G = _plot(funcs, *args, **kwds)
3573 elif n == 2:
3574 # if there are two extra args, then pull them out and pass them
as a tuple
/home/martin/sage-3.1.2-ubuntu32bit-i686-intel-i686-Linux/local/lib/python2.5/site-packages/sage/plot/plot.py
in _plot(funcs, xrange, parametric, polar, label, randomize, **kwds)
3596
3597 if not is_fast_float(funcs):
-> 3598 funcs = fast_float(funcs)
3599
3600 #parametric_plot will be a list or tuple of two functions (f,g)
/home/martin/fast_eval.pyx in sage.ext.fast_eval.fast_float
(sage/ext/fast_eval.c:7031)()
/home/martin/sage-3.1.2-ubuntu32bit-i686-intel-i686-Linux/local/lib/python2.5/site-packages/sympy/core/basic.py
in __float__(self)
1863 return float(result)
1864 else:
-> 1865 raise ValueError("Symbolic value, can't compute")
1866
1867 def __complex__(self):
ValueError: Symbolic value, can't compute
sage: x.plot((0,1))
---------------------------------------------------------------------------
AttributeError Traceback (most recent call last)
/home/martin/<ipython console> in <module>()
AttributeError: 'Symbol' object has no attribute 'plot'
sage: x.Plot((0,1))
---------------------------------------------------------------------------
AttributeError Traceback (most recent call last)
/home/martin/<ipython console> in <module>()
AttributeError: 'Symbol' object has no attribute 'Plot'
sage: x.Plot((x,0,1))
---------------------------------------------------------------------------
AttributeError Traceback (most recent call last)
/home/martin/<ipython console> in <module>()
AttributeError: 'Symbol' object has no attribute 'Plot'
sage: Plot(x)
---------------------------------------------------------------------------
NameError Traceback (most recent call last)
/home/martin/<ipython console> in <module>()
NameError: name 'Plot' is not defined
sage: from sym
symbol symtable
sage: from Sy
symbol symtable sys syslog
sage: from sym
symbol symtable
sage: from sympy import *
sage: Plot(
Display all 2146 possibilities? (y or n)
sage: Plot(x)
[0]: x, 'mode=cartesian'
sage: Plot?
Type: function
Base Class: <type 'function'>
String Form: <function Plot at 0xa4068ec>
Namespace: Interactive
File:
/home/martin/sage-3.1.2-ubuntu32bit-i686-intel-i686-Linux/local/lib/python2.5/site-packages/sympy/plotting/__init__.py
Definition: Plot(*args, **kwargs)
Docstring:
x.__init__(...) initializes x; see x.__class__.__doc__ for signature
sage: Plot??
Type: function
Base Class: <type 'function'>
String Form: <function Plot at 0xa4068ec>
Namespace: Interactive
File:
/home/martin/sage-3.1.2-ubuntu32bit-i686-intel-i686-Linux/local/lib/python2.5/site-packages/sympy/plotting/__init__.py
Definition: Plot(*args, **kwargs)
Source:
def Plot(*args, **kwargs):
import plot
return plot.Plot(*args, **kwargs)
sage: ?Plot
Type: function
Base Class: <type 'function'>
String Form: <function Plot at 0xa4068ec>
Namespace: Interactive
File:
/home/martin/sage-3.1.2-ubuntu32bit-i686-intel-i686-Linux/local/lib/python2.5/site-packages/sympy/plotting/__init__.py
Definition: Plot(*args, **kwargs)
Docstring:
x.__init__(...) initializes x; see x.__class__.__doc__ for signature
sage: plot(x)
---------------------------------------------------------------------------
ValueError Traceback (most recent call last)
/home/martin/<ipython console> in <module>()
/home/martin/sage-3.1.2-ubuntu32bit-i686-intel-i686-Linux/local/lib/python2.5/site-packages/sage/plot/plot.py
in plot(funcs, *args, **kwds)
3567 # if there are no extra args, pick some silly default
3568 if n == 0:
-> 3569 G = _plot(funcs, (-1, 1), *args, **kwds)
3570 # if there is one extra arg, then it had better be a tuple
3571 elif n == 1:
/home/martin/sage-3.1.2-ubuntu32bit-i686-intel-i686-Linux/local/lib/python2.5/site-packages/sage/plot/plot.py
in _plot(funcs, xrange, parametric, polar, label, randomize, **kwds)
3596
3597 if not is_fast_float(funcs):
-> 3598 funcs = fast_float(funcs)
3599
3600 #parametric_plot will be a list or tuple of two functions (f,g)
/home/martin/fast_eval.pyx in sage.ext.fast_eval.fast_float
(sage/ext/fast_eval.c:7031)()
/home/martin/sage-3.1.2-ubuntu32bit-i686-intel-i686-Linux/local/lib/python2.5/site-packages/sympy/core/basic.py
in __float__(self)
1863 return float(result)
1864 else:
-> 1865 raise ValueError("Symbolic value, can't compute")
1866
1867 def __complex__(self):
ValueError: Symbolic value, can't compute
sage: Plot(x,(-1,1))
[0]: x, 'mode=cartesian'
sage: Plot(sin(1/x),(-1,1))
[0]: sin(1/x), 'mode=cartesian'
sage: Plot(sin(1/x),(-2,2))
[0]: sin(1/x), 'mode=cartesian'
sage: plot(sin(1/x),(-2,2))
---------------------------------------------------------------------------
ValueError Traceback (most recent call last)
/home/martin/<ipython console> in <module>()
/home/martin/sage-3.1.2-ubuntu32bit-i686-intel-i686-Linux/local/lib/python2.5/site-packages/sage/plot/plot.py
in plot(funcs, *args, **kwds)
3570 # if there is one extra arg, then it had better be a tuple
3571 elif n == 1:
-> 3572 G = _plot(funcs, *args, **kwds)
3573 elif n == 2:
3574 # if there are two extra args, then pull them out and pass them
as a tuple
/home/martin/sage-3.1.2-ubuntu32bit-i686-intel-i686-Linux/local/lib/python2.5/site-packages/sage/plot/plot.py
in _plot(funcs, xrange, parametric, polar, label, randomize, **kwds)
3596
3597 if not is_fast_float(funcs):
-> 3598 funcs = fast_float(funcs)
3599
3600 #parametric_plot will be a list or tuple of two functions (f,g)
/home/martin/fast_eval.pyx in sage.ext.fast_eval.fast_float
(sage/ext/fast_eval.c:7031)()
/home/martin/sage-3.1.2-ubuntu32bit-i686-intel-i686-Linux/local/lib/python2.5/site-packages/sympy/core/basic.py
in __float__(self)
1863 return float(result)
1864 else:
-> 1865 raise ValueError("Symbolic value, can't compute")
1866
1867 def __complex__(self):
ValueError: Symbolic value, can't compute
sage: plot(sin(1/y),(y,-2,2))
---------------------------------------------------------------------------
ValueError Traceback (most recent call last)
/home/martin/<ipython console> in <module>()
/home/martin/sage-3.1.2-ubuntu32bit-i686-intel-i686-Linux/local/lib/python2.5/site-packages/sage/plot/plot.py
in plot(funcs, *args, **kwds)
3570 # if there is one extra arg, then it had better be a tuple
3571 elif n == 1:
-> 3572 G = _plot(funcs, *args, **kwds)
3573 elif n == 2:
3574 # if there are two extra args, then pull them out and pass them
as a tuple
/home/martin/sage-3.1.2-ubuntu32bit-i686-intel-i686-Linux/local/lib/python2.5/site-packages/sage/plot/plot.py
in _plot(funcs, xrange, parametric, polar, label, randomize, **kwds)
3596
3597 if not is_fast_float(funcs):
-> 3598 funcs = fast_float(funcs)
3599
3600 #parametric_plot will be a list or tuple of two functions (f,g)
/home/martin/fast_eval.pyx in sage.ext.fast_eval.fast_float
(sage/ext/fast_eval.c:7031)()
/home/martin/sage-3.1.2-ubuntu32bit-i686-intel-i686-Linux/local/lib/python2.5/site-packages/sympy/core/basic.py
in __float__(self)
1863 return float(result)
1864 else:
-> 1865 raise ValueError("Symbolic value, can't compute")
1866
1867 def __complex__(self):
ValueError: Symbolic value, can't compute
sage: y
y
Parent: Symbolic Ring
sage: plot(sin(1/y),(y,-2,2))
---------------------------------------------------------------------------
ValueError Traceback (most recent call last)
/home/martin/<ipython console> in <module>()
/home/martin/sage-3.1.2-ubuntu32bit-i686-intel-i686-Linux/local/lib/python2.5/site-packages/sage/plot/plot.py
in plot(funcs, *args, **kwds)
3570 # if there is one extra arg, then it had better be a tuple
3571 elif n == 1:
-> 3572 G = _plot(funcs, *args, **kwds)
3573 elif n == 2:
3574 # if there are two extra args, then pull them out and pass them
as a tuple
/home/martin/sage-3.1.2-ubuntu32bit-i686-intel-i686-Linux/local/lib/python2.5/site-packages/sage/plot/plot.py
in _plot(funcs, xrange, parametric, polar, label, randomize, **kwds)
3596
3597 if not is_fast_float(funcs):
-> 3598 funcs = fast_float(funcs)
3599
3600 #parametric_plot will be a list or tuple of two functions (f,g)
/home/martin/fast_eval.pyx in sage.ext.fast_eval.fast_float
(sage/ext/fast_eval.c:7031)()
/home/martin/sage-3.1.2-ubuntu32bit-i686-intel-i686-Linux/local/lib/python2.5/site-packages/sympy/core/basic.py
in __float__(self)
1863 return float(result)
1864 else:
-> 1865 raise ValueError("Symbolic value, can't compute")
1866
1867 def __complex__(self):
ValueError: Symbolic value, can't compute
sage: plot(lambda y: sin(1/y),(y,-2,2))
/home/martin/sage-3.1.2-ubuntu32bit-i686-intel-i686-Linux/local/bin/sage-sage:
line 215: 18608 Illegal instruction sage-ipython "$@" -c
"$SAGE_STARTUP_COMMAND;"
[EMAIL PROTECTED]:~$ sage
----------------------------------------------------------------------
| SAGE Version 3.1.2, Release Date: 2008-09-19 |
| Type notebook() for the GUI, and license() for information. |
----------------------------------------------------------------------
sage: plot(sin(1/x),(x,-1,1))
/home/martin/sage-3.1.2-ubuntu32bit-i686-intel-i686-Linux/local/bin/sage-sage:
line 215: 21052 Illegal instruction sage-ipython "$@" -c
"$SAGE_STARTUP_COMMAND;"
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