test suite 1 is wrong
what are you using for pi?
indeed,why don't you use pi?
Test case 2 is wrong, also description is wrong. Do you want volume, circumference, or area?
Make a checkerboard matrix
Bottles of beer
Reverse the elements of an array
Is it a number?
Convert a Cell Array into an Array
calculate the tangent of angle in radians
Calculate the base-10 logarithm of a number
Speed of car
Test if a number is numeric or not
Calculate square and cube of number
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