ATAN2 returns incorrect value for (0, 0) [CORE3201] #3575
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Modified by: @dyemanovassignee: Adriano dos Santos Fernandes [ asfernandes ] |
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Commented by: @asfernandes I first created a new message "Arguments for @1 cannot be simultaneously zero". Then I saw Oracle gives "Evaluation of an value expression causes an overflow/underflow". We already have "Floating point overflow in built-in function @1". What's the better message to use? |
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Commented by: @paulvink I strongly suggest the separate message, although I would rephrase it as "Arguments for @1 cannot both be zero" (or: "...may not both be zero"). There's no question of over- or underflow here, or division by zero -- just of something being undefined. Also, the separate message is very clear to the user. The other messages might still leave him wondering what he did wrong. |
Modified by: @asfernandesstatus: Open [ 1 ] => Resolved [ 5 ] resolution: Fixed [ 1 ] Fix Version: 3.0 Alpha 1 [ 10331 ] |
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Commented by: @paulvink How about 2.1.5 and 2.5.1 ? |
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Commented by: @pcisar Test created. |
Modified by: @pcisarstatus: Resolved [ 5 ] => Closed [ 6 ] |
Submitted by: @paulvink
Is related to QA555
The internal function ATAN2(0, 0) returns 0.000000
This is incorrect, as (0, 0) doesn't define a tangent, not even an "infinite" one like e.g. (3, 0) does.
If both arguments are 0, an exception should be raised or NaN returned.
Commits: f26d9a4
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