True, although not quite following the instruction. (But definitely not as blatant as some other submissions!)
Find the sum of all the numbers of the input vector
First non-zero element in each column
Specific Element Count
Add two numbers
Reverse a matrix
Create tangent function out of sine function only
Modified Upper Matrix Mock
Convert radians to degrees
Create tangent function out of sin and cos
Create tangent function out of cosine only
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