Do rounding towards plus infinity.
Example: -8.8, answer -8
+8.1 answer 9
+8.50 answer 9
Is A the inverse of B?
Symmetry of vector
Free passes for everyone!
Change the first and last diagonal element of the identity matrix to zero
Find out rooms, peak to peak, average for a square wave.
Crate a vector of logarithmically spaced
Delete 2nd and 5th column of Given 6*6 matrix
Generate vector according to sign of vector
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