Formula
Build a math expression by combining operators, functions and numbers that you enter with fields that you drag and drop into the Formula card. You can place fields of the type Number anywhere in the expression where there can be a number. At runtime, the expression is evaluated using the values of the fields to generate a single; output number.
You can use the following operators:

+
for addition 

for subtraction (or negative) 
*
for multiply 
/
for divide 
^
for power; for example, 10^2 returns 100 
%
for remainder; for example, 12%5 returns 2 
!
for factorial; for example, 3! returns 6 
#
allows you to add a comment to your expression (anything you type after the # is ignored when the expression is evaluated)
Use parentheses to group operations so they calculate together first.
You can also use standard math functions (with arguments inside parentheses), including:

abs  absolute value; for example, abs(10) returns 10

ceil  rounds up to the nearest integer

floor  rounds down to the nearest integer

min  the smallest of a comma separated list of numbers

max  the largest of a comma separated list of numbers

round  rounds to the nearest integer

random  a random number between 0 and a given value, or 1 if followed by empty parentheses; for example, random(10) or random()

exp  e to the power of a given value

log  the logarithm using base e of a value

log10  the logarithm using base 10 of a value

pow  the first parameter to the power of the second parameter; for example, pow(2,3) returns 8

sqrt  the square root of a value

pi  the value for pi (use without parentheses)

sin  the sine of an provided angle in radians

cos  the cosine of an provided angle in radians

tan  the tangent of an provided angle in radians

asin  the arcsine of a value between 1 and 1

acos  the arccosine of a value between 1 and 1

atan  the arctangent of a value between 1 and 1

sinh  the hyperbolic sine of a value between 1 and 1

cosh  the hyperbolic cosine of a value between 1 and 1

tanh  the hyperbolic tangent of a value between 1 and 1
You can combine multiple operations, such as:
(pi*(max(10,11,12)^2))+round(random(5))
And number fields (such as dropping an output from a previous card into the middle of a calculation) can be used in place of any number value.
For binary arithmetic, use & (bitwise and), ~ (bitwise not),  (bitwise or), ^ (bitwise xor), << (left shift), and >> (right shift).
Input
The function has one large input area that accepts a combination of numbers, operators, and math functions you type with number fields you drag/drop in.
Output
The calculation that results from evaluating the expression using the values of the fields at runtime.