Write a function that takes an interval from a to b, and divides it into 5 parts
a = 1, b = 2
output = 1 1.25 1.5 1.75 2
The interval is split in 4 parts, not 5! There are five points in total then...
Swap the first and last columns
2 b | ~ 2 b
sum of first 'n' terms
Produce a cosine wave
Matlab Basics II - squares
Matlab Basics II - Velocity of a particle
Replace every 3rd element in a vector with 4
Matlab Basics II - Count rows in a matrix
Matlab Basics II - Extract last 3 elements of a vector
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