Sum of diagonal of a square matrix
Sum of first n terms of a harmonic progression
Min of a Matrix
Area of a Square
Plot Damped Sinusoid
Make a checkerboard matrix (★★★★★)
How to locate the position of an element in a vector without using the find function
Fill a zeros matrix (★★★★★)
PEMDAS test (★★)
Approximate functions 2 (★★★★)
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