On 09/05/2013 10:46 AM, Sergey B Kirpichev wrote:
On Thu, Sep 05, 2013 at 03:59:22PM +0200, Saullo Castro wrote:
- how to change the printer from Function to give just "u" instead of
"u(x, t)", for example. I tried subclassing Function like shown in the
code but without success
You can see how printers works in sympy/printing/
Below is what I did to achieve what you want (note the last statement)
class GaPrinter(StrPrinter):
function_names = ('acos', 'acosh', 'acot', 'acoth', 'arg', 'asin',
'asinh',
'atan', 'atan2', 'atanh', 'ceiling', 'conjugate',
'cos',
'cosh', 'cot', 'coth', 'exp', 'floor', 'im',
'log', 're',
'root', 'sin', 'sinh', 'sqrt', 'sign', 'tan',
'tanh', 'Abs')
def _print_Function(self, expr):
name = expr.func.__name__
if expr.func.nargs is not None:
if name in GaPrinter.function_names:
return(expr.func.__name__ + "(%s)" %
self.stringify(expr.args, ", "))
return Eprint.Fct("%s" % (name,))
Basic.__str__ = lambda self: GaPrinter().doprint(self)
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