Multiply a column by a row
Find the dimensions of a matrix
find the mean of all elements in a matrix
Sum of adjacent elements in a vector
Problem for beginners
Average of corner elements of a matrix (★★)
Create logarithmically spaced values (★)
Sum of terms in a series 2 (★★★)
Matrix with increasing numbers (★★★★)
Create a vector of n alternating ones and minus ones (★★)
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