MathML 计算器 (1.0)

(系统要求 Internet Explorer 6+MathPlayer 或 Mozilla/Firefox/Netscape 7+.)

Enter (or edit) mathematical expressions below (using fairly standard graphing calculator syntax).

sin(pi/2)  

2sin^-1(1)  

a=5; b=4; c=-1; (-b+sqrt(b^2-4a*c))/(2a)  
(-b-sqrt(b^2-4a*c))/(2a)  

提示: 用弧度代替角度 .比如不能输入90度 而应该输入 90*pi/180
JMath 语法
The multiplication symbol * can be omitted after a digit (0-9) or a closing parenthesis.
Available constants and functions: +, -, *, /, ^, pi, e, sqrt(), ln(), abs(), sign(), floor(), ceil(), n!, C(n,k), ran(a,b,n), sin(), cos(), tan(), sin^-1(), cos^-1(), tan^-1(), sinh(), cosh(), tanh(), sinh^-1(), cosh^-1(), tanh^-1(), sech(), csch(), coth(), sech^-1(), csch^-1(), coth^-1()
Values can be assigned to (legal JavaScript) variable names. Use ";" to separate expressions.