For an array A, determine whether it has 3 dimensions, return 0 if x is only 2D, and 1 if x is 3D
given 3 sides, find area of this triangle
Kelvin to Celsius
BASICS - sum part of vector
Matlab Basics - Rounding II
Matlab Basics II - Minimum
Matlab Basics II - Count rows in a matrix
Matlab Basics II - Intervals
Matlab Basics II - Create a vector with a repeated entry
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