This approach should work as well, but the results are not exactly equal (<1e-14 error). I suggest adding a tolerance to the test suite.
Determine if a Given Number is a Triangle Number
All your base are belong to us
Calculate the derivative of a polynomial
Create incrementing array
Beginner's Problem - Squaring
04 - Scalar Equations 1
04 - Scalar Equations 2
07 - Common functions and indexing 5
02 - Vector Variables 2
07 - Common functions and indexing 6
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