Set x value to each even index of vector y.
Append two matrix as shown below example
Matlab Basics II - Create a vector with a repeated entry
Find sum of negative elements in row.
Sum positive elements of matrix.
Calculate the sum of elements of n*n Hilbert matrix.
Find the sines of an isosceles triangle when given its area and height
Opposite task convert string hexadecimal numbers array into array of decimal numbers .
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