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Operation  Syntax  Example  

addition  a+b  a+b  a + b 
subtraction  ab  ab  a  b 
multiplication  a*b  a*b  a * b 
division  a/b  x/{x+1}  x  x + 1 
a!  3! =2  3! = 2 

a^b  x^2  2 x 

a_b  x_i  x i 

invisible brackets  {a}  x/{x+1}  x  x + 1 
round brackets  (a)  3*(x+y)  3 * (x + y) 
pointed brackets  <a>  <x+y>  <x + y> 
ceil  ceil(a)  ceil(x*pi)  _ _  __   x *   
floor  floor(a)  floor(x*pi)   __  _ x *  _ 
pi  pi  4*pi*r^2  __ 2 4 *  * r 
infinity  INFINITY  n>INFINITY  n>oo 
binomial  binomial(a;b)  binomial(49;6)  / 49 \   \ 6 / 
(square) root  sqrt(a)  sqrt(pi)  ____ _  __ \  
sqrt(b;a)  sqrt(3;pi)  ____ _3 __ \  

sum  sum(a)  sum(x_i)   \ > x / i  
sum(b;a)  sum(i;x_i)   \ > x / i  i 

sum(b=c..d;a)  sum(i=2..y;x_i)  y  \ > x / i  i = 2 

product  prod(a)  prod(x_i)  _____     x   i 
prod(a)  prod(i;x_i)  _____     x   i i 

prod(a)  prod(i=0..y;x_i)  y _____     x   i i = 0 

logarithm  log(b;a)  log(3;x)  log x 3 
vector/arrow  vec(a)  vec(x)  > x 
overline  overline(a)  overline(x)  _ x 
underline  underline(a)  underline(x)  x  
text  "text"  "pi is not INFINITY!"  pi is not INFINITY! 
greek letters  alpha  Alpha  beta  ...  Omega  alpha  _ _ (_/_ 
Sigma  ___ \ > /__ 

varrho  _ (_) ` 
f_{1,2,3}(PI)=binomial(1;4)/PI  / 1 \ /  \       \ 4 / f \   / =  1,2,3      