For an array A, determine whether it has 3 dimensions, return 0 if x is only 2D, and 1 if x is 3D
Multiply 2 numbers
Getting the indices from a matrice
Sum of the Matrix Elements
Area of a disk
Determine the length of a string of characters
Matlab Basics - y as a function of x
Matlab Basics - Pick out parts of a vector
Matlab Basics - Convert a row vector to a column vector
Matlab Basics - Set unwanted parts of a vector to zero
Matlab Basics II - squares
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