integral from 0 to 10 of 3x squared + x over 3

summation for n = 0 to 12 of 3n cubed + root of n

2 by 4 matrix: 1, 2, 3, 4, x sub a, x sub b, x sub c, x sub d

geo: arc ABC + arc CDA = circle ABCDA

For all A there exists x within R2 { x = 2y + x }

chem H2O liquid + NaCl solid = Na+ aqueous + Cl- aqueous

venn diagram of X, Y, Z with XY, Z shaded

f(x) = piecewise: 2x^2, x is greater than 10, x - 2, x less than or equal to 10;