You need to fix some issues: you only have one test working, you are rounding to 3 decimal places, and the last test case is false (it should give 502.655)
also you shouldn't use isequal when you use pi.
The test suite has been updated.
The value of pi is wrong, but so it is the test suite.
Determine Whether an array is empty
Add two numbers
Length of the hypotenuse
Compare two input matrices
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