Switch assignments for variables x and y, for example
start with x = 1 and y = 3
end with y = 1 and x = 3
Do NOT simply re-assign variables, use a temporary variable 'z'
So many choices
Set the array elements whose value is 13 to 0
Multiply by 3
Produce a cosine wave
Matlab Basics II - Log and natural log
Matlab Basics - Rounding III
Matlab Basics II - Operations and Matrix Dimensions
Matlab Basics II - Max & Index of Max
Finding an element in a vector
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