We can also use the following operators to create approaches involving mathematical calculations. Currently supported mathematical operators: +: Adds two numbers (operands are converted to numbers if necessary). Example of use: 
{# Addition #}
{{ 5 + 3 }} {# Returns 8 #}
-: Subtracts the second number from the first. Example of use: 
{# Subtraction #}
{{ 10 - 4 }} {# Returns 6 #}
/: Divides two numbers. Example of use: 
{# Division #}
{{ 10 / 2 }} {# Returns 5 #}
%: Calculates the remainder of an integer division. Example of use: 
{# Remainder of integer division #}
{{ 11 % 7 }} {# Returns 4 #}
//: Divides two numbers and returns the integer result rounded down. Example of use: 
{# Integer result rounded down #}
{{ 20 // 7 }} {# Returns 2 #}
{{ -20 // 7 }} {# Returns -3 #}
*: Multiplies the left operand by the right. Example of use: 
{# Multiplication #}
{{ 2 * 6 }} {# Returns 12 #}
**: Raises the left operand to the power of the right operand. Example of use: 
{# Exponentiation #}
{{ 3 ** 2 }} {# Returns 9 #}