x = ((-b + (Sqrt[(b^2)- 4 a c]))/(2 a))

Export["~/Documents/ph3/labs/mathematica/week7/quadratic.pdf", %, "PDF"]

(∫_1^4) y \[DifferentialD]y

I

π

N[%]

N[γ]

N[E]

(∑_(n = 1)^10)n

(∑_(n=1)^100)(Subscript[y, n])

∫ (1/(1 + b (y^2)))\[DifferentialD]y

∫Log[y]\[DifferentialD]y

Clear[x]

Factor[1-x^3]

Limit[1/x^2, x-> 0]

Series[PolyGamma[x], {x, 1, 4}]

Solve[5 x + 3 == 13]

DSolve[y'[x]/y[x] == a, y[x], x]

DSolve[y''[x] + (a - 2*q*Cos[2*x])*y[x] == 0, y[x], x]

1 = 2

1==2

1≠ 2

1>2

1<2

2≤2

??Pi[x]

PrimePi[3724129]

%/3724129

N[%]