Calculator
Just type and your answer comes up live. Example: "1+2"
All Functions
Operators

+ 
Addition operator 

 
Subtraction operator 

* 
Multiplication operator 

/ 
Division operator 

^ 
Power/Exponent/Index operator 

() 
Parentheses 
Functions

sqrt 
Square Root of a value or expression. 

sin 
sine of a value or expression 

cos 
cosine of a value or expression 

tan 
tangent of a value or expression 

asin 
inverse sine (arcsine) of a value or expression 

acos 
inverse cosine (arccos) of a value or expression 

atan 
inverse tangent (arctangent) of a value or expression 

sinh 
Hyperbolic inverse sine (arcsine) of a value or expression 

cosh 
Hyperbolic inverse cosine (arccos) of a value or expression 

tanh 
Hyperbolic inverse tangent (arctangent) of a value or expression 

exp 
e (the Euler Constant) raised to the power of a value or expression 

ln 
The natural logarithm of a value or expression 

log 
The base10 logarithm of a value or expression 

abs 
Absolute value (distance from zero) of a value or expression 
Constants