Make roundn function using round.
The test suite has been enhanced and expanded.
Back to basics 23 - Triangular matrix
Sum of first n terms of a harmonic progression
Cell Counting: How Many Draws?
Right Triangle Side Lengths (Inspired by Project Euler Problem 39)
length of a vector
Solve system of equation!
Calculate solution of given polynomial
Solve the system of linear equations
Replace 0 to NaN!
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