“Everyone learns many mathematical operations in school: fractions, roots, logarithms, and trigonometric functions […] each ...
return columns[0][3] * columns[1][2] * columns[2][1] * columns[3][0] - columns[0][2] * columns[1][3] * columns[2][1] * columns[3][0] - columns[0][3] * columns[1][1 ...