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Qubic equation solving.. and just bad sums
#12
by vivazko - opened
first I put Qubic equation with low values. x^3−15x^2+71x−105=0
It solved by factoring
then I increased values, it used some heavy method giving failing approximate value
on second try, lighter method but again failing approximate values
just overthinking of multiplication when expanding (x-12721)*(x-13721) and wrong result
...
13221^2 − 500^2 = 174804841−250000=174554841
SHOULD BE:
174794841−250000=174544841
vivazko changed discussion title from Qubic equation solving to Qubic equation solving.. and just bad sums