Sage is a python module.
The following is an example which defines a class from which you can
manipulate functions :
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#! /usr/bin/sage -python
# -*- coding: utf8 -*-
from sage.all import *
class MaClasse(object):
def __init__(self,exp):
self.sage = exp
self.sageFast = self.sage._fast_float_(x)
def Derr(self):
return MaClasse(self.sage.derivative())
def Evaluation(self,xe):
return numerical_approx(self.sageFast(xe))
var('x,y')
f = MaClasse(x**2+2)
print f.Derr().sage
print f.Derr().Evaluation(3)
print f.Evaluation(8)
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Copy-paste it in a text file, make it executable, and enjoy !
Laurent
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