On Thu, Apr 18, 2013 at 1:50 PM, abdelkader belahcene
<abelahc...@gmail.com>wrote:
> Thanks for answer,
> but with C we can compile the trapeze function and put it in librairy,
> If we try to save the trapeze alone in package to import it later, I
> think, I am not sure
> it will be refused because F1 and sin are not define !!! this is the
> power of the C pointers !!!
> the link is dynamic
>
You don't need C pointers. The design below is demonstrative, not ideal.
# file MyFuncs.py
def F1(x):
return x*x
def Trapeze(f, left, right, step):
X0 = left
Z = 0.0
while (X0 < right):
X1 = X0 + step
Y1 = f(X1)
Y0 = f(X0)
Z += (Y1 + Y0) * step * 0.5
X0 = X1
return Z
# file UseMyFuncs.py
import math
import MyFuncs
def main():
y = MyFuncs.Trapeze(math.sin, -2.5, 3.2, 0.1)
print("Value for sin is:{0} ".format(y))
y = MyFuncs.Trapeze(MyFuncs.F1, 0, 3, 0.1)
print("Value for F1 is {0} ".format(y))
if __name__ == "__main__":
main()
###
#python3 UseMyFuncs.py
###
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