2y=(1/2)y2

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Solution for 2y=(1/2)y2 equation: 


y in (-oo:+oo)

2*y = (1/2)*y^2 // - (1/2)*y^2

2*y-((1/2)*y^2) = 0

(-1/2)*y^2+2*y = 0

2*y-1/2*y^2 = 0

DELTA = 2^2-(-1/2*0*4)

DELTA = 4

DELTA > 0

y = (4^(1/2)-2)/(-1/2*2) or y = (-4^(1/2)-2)/(-1/2*2)

y = 0 or y = 4

y in { 0, 4 }

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