Test 4 is wrong; y_correct should be [1; 2; 4]
I´m afraid all tests are correct. But thanks anyway!
07 - Common functions and indexing 5
Add a row of zeros on top of a matrix
Solving Quadratic Equations (Version 1)
Approximate the inverse tangent by power series
Get the mean digit
Double the next and alternate sign
Ratio between sum of primes and sum of factors
Say type of roots in quadratic equation
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