Въведение

Input/Output Cell

2+2

text cell

Solve[2x==3,x]

Solve[4x==3,x]

Solve[4(x^3)+5(x^2)-56x==3,x]

Solve[4(x^3)+5(x^2)-56x +Sin[x]==3,x]

NSolve[4(x^3)+5(x^2)-56x +Sin[x]==3,x]

Plot[4(x^3)+5(x^2)-56x +Sin[x]-3,{x,-10,10}]

Plot[4(x^3)+5(x^2)-56x +Sin[x]-3,{x,-100,100}]

Plot[4(x^3)+5(x^2)-56x +Sin[x]-3,{x,-5,5}]

Plot[4(x^3)+5(x^2)-56x +Sin[x]-3,{x,20,30}]

(* дефиниране на функция: *)
f[x_]:=4(x^3)+5(x^2)-56x +Sin[x]-3

f[x]

f[a]

f[my]

f[2]

f[2.]

f[4.]

108.24319750469208`

f[x]