Operator 
Description 
Simple math operations 
+  * / () 
Addition, subtraction, multiplication, division and grouping characters: +  * / () . The multiplication sign * is optional: the expression 2sin(3x) is equal 2*sin(3*x). Brackets are used to group expressions. 
0.5 
Use dot as separator in decimals: 0.5  correct;
 0,5  incorrect.

Elementary functions 
x^{n} 
Exponentiation: x^n, for example, to input x^{2} is used x^2 
√x 
Square root: \sqrt(x) or x^(1/2) 
^{3}√x 
Cubic root: x^(1/3) 
^{n}√x 
Root of ndegree from x: x^(1/n) 
ln(x) 
Natural logarithm (log base e): log(x) 
log_{a}x 
Logarithm from x with base a: log(x)/log(a) 
lg(x) 
Decimal logarithm (logarithm base 10): log(x)/log(10) 
e^{x} 
Exponential function: e^x 
Trigonometric functions 
sin(x) 
Sine from x: sin(x) 
cos(x) 
Cosine from x: cos(x) 
tg(x) 
Tangent from x: tan(x) 
ctg(x) 
Cotangent from x: 1/tan(x) 
arcsin(x) 
Arcsine from x: arcsin(x) 
arccos(x) 
Arccosine from x: arccos(x) 
arctan(x) 
Arctangent from x: arctan(x) 
arcctg(x) 
Arccots from x: \pi/2  arctan(x) 
Some constants 
e 
Euler number e: \e 
π 
Pi π: \pi 