x is the abscissa. find the absolute value of cosine of -x and the same value with changed sign.
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Problem Comments
1 Comment
yurenchu
on 30 Jul 2017
In addition to the weak test suite: The title of the problem says "Sinus function", yet the (incomplete) problem description mentions only "cosine" ??? Furthermore, should abs(cos(-x)) be assigned to y, or to z?
Solution Comments
1 Comment
Elmar Zander
on 17 Mar 2017
Please improve the test cases. Returning 1 and -1 is complete enough with these sloppy tests.
1 Comment
Ben Petschel
on 22 Aug 2016
bad test suite
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