CVS difference for ais/ai-00156.txt

Differences between 1.6 and version 1.7
Log of other versions for file ais/ai-00156.txt

```--- ais/ai-00156.txt	2000/06/20 04:22:43	1.6
+++ ais/ai-00156.txt	2000/07/13 04:31:29	1.7
@@ -24,7 +24,7 @@
!question

G.1.1(55) gives the following method for doing complex exponentiation
-in polar form in G.1.1(55):
+in polar form:

... exponentiating the modulus by the given exponent; multiplying
the argument by the given exponent, when the exponent is positive,
@@ -48,8 +48,8 @@

Here is a proof by example that the given method is incorrect:

-Assume that the RM95 method is correct.  Let a complex number X=0+I.  Let an
-integer n=-1
+Assume that the method described in the standard is correct.  Let a
+complex number X=0+I.  Let an integer n=-1

X**n=1/i=-i

@@ -58,7 +58,8 @@

but, argument(X**n)=argument(-i)=-pi/2

-pi/2 /= -pi/2 (even as an angle) i.e. a contradiction has been found.
+Obviously, pi/2 is not equal to -pi/2 (even as an angle); i.e. a
No zero-valued complex numbers were involved (they can mess things up).
The only dubious assumption made was that the method described in G.1.1(55) was
correct. So, it must not be.
```

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