Calculator-Ext

A calculator extension for Chrome

Features

Operators

Operator	Name
+	Add
-	Subtract
*	Multiply
/	Divide
%	Modulus
^	Exponent
!	Factorial
E	Scientific Notation

Constants

Constant	Value
pi	3.1415926536
e	2.7182818285

Functions

abs(x)

Absolute value of x

rand([max])

rand([min, max])

Generate a random number, min and max are optional. If only max is given, min is assumed to be 0

sum(...nums)

Sum multiple numbers

sumrange(start, stop)

Sum a range of numbers, inclusive

sqrt(x)

Square root of x

cbrt(x)

Cube root of x

root(val, root)

Calculates an arbitrary root of val

floor(x)

Round x down to the nearest integer

round(x)

Round x to the nearest integer (.5 is rounded up)

ceil(x)

Round x up to the nearest integer

trunc(x[, decimals])

Truncate x to the amount of decimal places determined by decimals (default: 0)

sin(x) / asin(x)

Sine and Arcsine (also written as sin-1(x))

cos(x) / acos(x)

Cosine and Arccosine (also written as cos-1(x))

tan(x) / atan(x)

Tangent and Arctangent (also written as tan-1(x))

log(x)

Logarithm base 10 of x

ln(x)

Logarithm base e of x

isprime(x)

Returns 1 if x is prime, and 0 if x is not prime

gcd(num, den)

gcf(num, den)

Returns the greatest common divisor (factor) of two numbers. Returns 0 if either number is not an integer

Macros

hex(value)

Convert value from hexadecimal (base 16) to decimal (base 10)

oct(value)

Convert value from octal (base 8) to decimal (base 10)

bin(value)

Convert value from binary (base 2) to decimal (base 10)

convert(value from_unit, to_unit)

convert(value from_unit ["as" | "to" | "in"] to_unit)

Converts value from from_unit to to_unit

range(start, stop[, step])

Creates a list that spans from start to stop, with an optional step size (default: 1)

f(variable, equation, start, stop[, step])

Compute equation for each value of variable as defined by the range [start, stop] with an optional step size (default: 1)

Expressions

• Multiple expressions can be separated by using commas (,) in the input field.
  • Ex: 1 + 2, 3 - 5 = 3, -2
• Each expression is evaluated separately, and displayed in their respective order after being evaluated. Definition expressions (Ex. x = 4) are not displayed as output.

Variables

• Supports arbitrary variable names (all lowercase, must not collide with constants or operators)
• A variable definition is an expression that starts with a variable name, an equals sign, followed by an evaluable expression (Ex. x = 4, or myvar = 5 + 6)
• Variables can be defined before or after an expression (Ex. x = 2, 3x and 3x, x = 2 are both valid)
• Variables definitions that rely on each other must be defined in order (Ex. x = 2, y = 5 - x is valid, but y = 5 - x, x = 2 is not valid)

Other

• Supports both degree (Deg) and radian (Rad) modes
• Keeps track of the last 25 calculations and results