Problem 1423. Cos Function

Created by Marco Castelli

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<div style = "text-align: start; line-height: 20.4333px; min-height: 0px; white-space: normal; color: rgb(0, 0, 0); font-family: Menlo, Monaco, Consolas, monospace; font-style: normal; font-size: 14px; font-weight: 400; text-decoration: rgb(0, 0, 0); white-space: normal; "><div style="block-size: 21px; display: block; min-width: 0px; padding-block-start: 0px; padding-top: 0px; perspective-origin: 407px 10.5px; transform-origin: 407px 10.5px; vertical-align: baseline; "><div style="font-family: Helvetica, Arial, sans-serif; line-height: 21px; margin-block-end: 9px; margin-block-start: 2px; margin-bottom: 9px; margin-inline-end: 10px; margin-inline-start: 4px; margin-left: 4px; margin-right: 10px; margin-top: 2px; perspective-origin: 384px 10.5px; text-align: left; transform-origin: 384px 10.5px; white-space: pre-wrap; margin-left: 4px; margin-top: 2px; margin-bottom: 9px; margin-right: 10px; "><span style="block-size: auto; display: inline; margin-block-end: 0px; margin-block-start: 0px; margin-bottom: 0px; margin-inline-end: 0px; margin-inline-start: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; perspective-origin: 287.5px 8px; transform-origin: 287.5px 8px; unicode-bidi: normal; "><span style="">x is the input. Find the absolute value of cosine of -x and the same value with opposite sign.</span></span></div></div></div>

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Solution Stats

267 Solutions
134 Solvers

Last Solution submitted on May 03, 2021

Last 200 Solutions

Problem Comments

2 Comments

2 Comments

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?

Dyuman Joshi on 19 Apr 2021 at 10:18

The test description has been updated. Also, new and improved test suites are added within the scope of the problem.

Solution Comments

Solution 1140390

1 Comment

1 Comment

Elmar Zander on 17 Mar 2017

Please improve the test cases. Returning 1 and -1 is complete enough with these sloppy tests.

Solution 940023

1 Comment

1 Comment

Ben Petschel on 22 Aug 2016

bad test suite

Solution 231995

1 Comment

1 Comment

Tim on 18 Apr 2013

The test suite is not very rigorous...

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Problem 1423. Cos Function

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Last 200 Solutions

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Solution Comments

Problem Recent Solvers134

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Problem 1423. Cos Function

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers134

Suggested Problems

More from this Author11

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