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Guido van Rossum 1993-12-17 14:23:52 +00:00
parent 3cbc16d904
commit 7565b93414
8 changed files with 51 additions and 49 deletions
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32
Demo/classes/Complex.py
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@ -4,16 +4,21 @@
from math import sqrt
def complex(re, im):
return Complex().init(re, im)
class complex:
class Complex:
def init(self, re, im):
def __init__(self, re, im):
self.re = float(re)
self.im = float(im)
return self
def __coerce__(self, other):
if type(other) == type(self):
if other.__class__ == self.__class__:
return self, other
else:
raise TypeError, 'cannot coerce to complex'
else:
# The cast to float() may raise an exception!
return self, complex(float(other), 0.0)
def __repr__(self):
return 'complex' + `self.re, self.im`
@ -60,9 +65,16 @@ class Complex:
def test():
a = complex(2, 0)
b = complex(3, 4)
print a, b
print a+b, a-b, a*b, a/b
print b+a, b-a, b*a, b/a
print a
print b
print a+b
print a-b
print a*b
print a/b
print b+a
print b-a
print b*a
print b/a
i = complex(0, 1)
print i, i*i, i*i*i, i*i*i*i
j = complex(1, 1)