Mathematician Finds Easier Way to Solve Quadratic Equations

[Pyjam]

I'm delighted that this subject has allowed me to rediscover this formula, whose simplicity I admire.

x² − Sx + P = 0
With S = Sum, P = Product, M = Mean, δ = Deviation
M = S/2
δ² = M² − P
x = M ± δ

Code:

Input Sum
ENTER
ENTER
2
÷
ENTER
x²
Input Product
−
√x
− gives x₁
− gives x₂