Problem 2377. Area of a disk

Created by Shravankumar P

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Find the area of a disk or circle.

x= radius of the disk.

Solve

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Last Solution submitted on Aug 27, 2025

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Guillaume on 19 Jun 2014

Rather than using isequal on floating points which is bad practice and forcing the function to round its output to two decimals, you should test that the result is within a certain tolerance of the true value, like so: assert(abs(y_correct-crcl_area(x)) <= 0.01)

Ned Gulley on 19 Jun 2014

Good advice! Floating point math and isequal don't mix well.

bainhome on 8 May 2015

why don't you claim "pi"?really hate it.

Akansha Saxena on 7 Dec 2015

"pi" works, but currently, solution needs to be rounded off to 2 decimal places.
Would be better to increase the result tolerance.

Michael Eldredge on 2 Apr 2019

The numbers are wrong.

Please fix the test suite.

MAHMOUD ABDEL-LATIF on 11 Jun 2019

You need to specify that the answer must be rounded to 2 decimal places.

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Problem 2377. Area of a disk

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Problem 2377. Area of a disk

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Last 200 Solutions

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Problem Recent Solvers363

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