I'm trying to pass in an expression to my class Table and use i in the
for loop for the x variable. How can I do that?
class Table:
def __init__(self,range_start,range_end,step,expression):
self.range = range(range_start,range_end+1,step)
self.expression = expression
def __repr__(self):
return 'Table of values of %s for %s' %
(str(self.expression),str(self.range))
def __str__(self):
string = 'x | y\n\n------------\n\n'
for x in self.range:
string += '%5d|%6d\n\n' % (x,self.expression)
return string
table1 = Table(0,10,1,2*x+3)
print table1
x | y
------------
0| 21
1| 21
2| 21
3| 21
4| 21
5| 21
6| 21
7| 21
8| 21
9| 21
10| 21
I created a for loop outside of my class:
for i in range(11):
x = i
print '%5d|%6d\n\n' % (x,2*x+3)
0| 3
1| 5
2| 7
3| 9
4| 11
5| 13
6| 15
7| 17
8| 19
9| 21
10| 23
I don't know why x in self.expression equals 10. I have done several
tests and found that in my class x always equals 10. You can check
that in SAGE notebook 1 history.
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