Mathjax-test
Aryb1n
2月 21, 2017
123
$$
\int_0^1 x^2 {\rm d}x = 3
$$
const v = x => x * x;
var myfun = function() {
return 333;
}
Mathjax-test
123
$$
\int_0^1 x^2 {\rm d}x = 3
$$
const v = x => x * x;
var myfun = function() {
return 333;
}