C++ - Array Math -

i trying equation c++

root[0] = root [0] - f(root[0])/ root[0] - root[1] * root[0] - root[2] * root[0] - root[3]

in examples there 3, changes user input.

the program trying solve polynomial equations enough information.

i have got top of equation work here came with:

complex<double> top, bottom; top = (complex<double>)coefficientarray[1] * (pow (rootarray[0], degree)); rootarray[0] = rootarray[0] - (top/bottom);

solving linear equations alot faster using:

to find roots of higher grade equations -with approximation error- should use the
newton-raphson method.

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