Return unique values without sorting
Symmetry of vector
Deleting an element in a matrix
Square a Number
Crop an Image
Matrix with increasing numbers (★★★★)
Approximate functions 1 (★★★)
Get the elements of diagonal and antidiagonal for any m-by-n matrix (★★★★)
Logarithmically spaced vector creation using logspace
Mo money, mo math #2! (★★★)
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