Back and Forth Rows
Make a Palindrome Number
Number of 1s in a binary string
02 - Vector Variables 4
Product of Array
Generate n equally spaced "intervals" between -x and x (★)
Create a vector of n alternating ones and minus ones (★★)
Matrix with increasing numbers (★★★★)
Get the elements of diagonal and antidiagonal for any m-by-n matrix (★★★★)
Extract leading non-zero digit (★★★★★)
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