Check if number exists in vector
Replicate elements in vectors
We love vectorized solutions. Problem 1 : remove the row average.
Find the hypotenuse
Product of Each Column
Fill a zeros matrix (★★★★★)
Sum of terms in a series 1 (★★★)
Get the elements of diagonal and antidiagonal for any m-by-n matrix (★★★★)
Extract leading non-zero digit (★★★★★)
Generate n equally spaced "intervals" between -x and x (★)
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