Some Mathematics

d 2 =∣ x ⇀ 1-x ⇀ 0-( x ⇀ 2-x ⇀ 1)[ (x ⇀ 1-x ⇀ 0)⋅(x ⇀ 2-x ⇀ 1) ]∣ x ⇀ 2-x ⇀ 1 ∣ 2 ∣ 2

testest testest x testest + testest y 2 testest testest k testest + testest 1 testest

testest a 0 testest testest + testest 1 testest a testest 1 + testest 1 testest a 2 + 1 testest a 3 testest testest + testest 1 testest a testest 4 testest testest testest

Altra prova
testest ∫ ∫ D dx dy testest
andrea
1- testest xeff testest ̂≠( testest ∫0∞ testest sin( testest x~) testest 1/e testest 3βdx testest )≠limx testest →∞1 testest x

ciao
testest ∑ k = 1 7 testest testest x k k ! testest

testest ∫ 0 1 testest testest testest log 16 testest testest ( testest t testest ) testest 1 - t 2 testest ⁢ ⅆ t testest

testest d testest d testest x f ( x ) = lim testest h testest → testest 0 testest f testest ( x + h ) testest testest - testest f testest ( x ) testest h testest

TeX formatted

f ( x ) = ∑ n = 0 ∞ f ( n ) ( a ) n ! ( x - a ) n
g ( x ) = x 2
The quadratic formula is - b ± b 2 - 4 a c 2 a