Operator 
Description 
The simplest mathematical operations 
+  * / () 
Addition, subtraction, multiplication, division, and grouping symbols: +  * / () . Multiplication sign *  is optional: expression 2sin(3x) is equivalent to 2*sin(3*x). Brackets are used to group expressions. 
0.5 
Decimals are written with a dot: 0.5  is correct;
 0,5  is incorrect.

Elementary Functions 
x^{n} 
Exponentiation: x^n, for example, to enter x^{2} use x^2 
√x 
Square root: \sqrt(x) or x^(1/2) 
^{3}√x 
Cube root: x^(1/3) 
^{n}√x 
Root nth degree of x: x^(1/n) 
ln(x) 
Natural logarithm: log(x) 
log_{a}x 
Logarithm from x with base a: log(x)/log(a) 
lg(x) 
Decimal logarithm: log(x)/log(10) 
e^{x} 
Exponential function: exp(x) 
Trigonometric functions 
sin(x) 
Sine off x: sin(x) 
cos(x) 
Cosine of x: cos(x) 
tg(x) 
Tangent of x: tan(x) 
ctg(x) 
Cotangent of x: 1/tan(x) 
arcsin(x) 
Arcsine of x: arcsin(x) 
arccos(x) 
Arccosine of x: arccos(x) 
arctan(x) 
Arctangent of x: arctan(x) 
arcctg(x) 
Arccotangent of x: \pi/2  arctan(x) 
Some Constants 
e 
Euler number e: \e 
π 
Pi π: \pi 