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[Bug-apl] Integer - rational multiplication anomaly
From: |
Frederick Pitts |
Subject: |
[Bug-apl] Integer - rational multiplication anomaly |
Date: |
Tue, 15 Aug 2017 23:55:21 -0500 |
Hello all,
With gnu-apl configured with RATIONAL_NUMBERS_WANTED=YES, I
observe the following:
⎕PS ← 1 22
x ← 3 ÷ 1
x + 1 ÷ 2
╔═══╗
║7÷2║
╚═══╝
x × 1 ÷ 2
╔═══╗
║1.5║
╚═══╝
The last result should be 3÷2. In general, multiplication of
integers and rationals should yield rationals or integers (which are
rationals with a denominator of 1), not floats. The exception would be
when the numerator or denominator of an intermediate rational result
overflows the integer range.
Regards,
Fred
- [Bug-apl] Integer - rational multiplication anomaly,
Frederick Pitts <=