Online Scientific Calculator

This is a formula calculator. Enter your expressions in the same order as you would write them on paper. Then press '=' to display the result.

Use parenthesis to alter the order of operations or to specify function parameters.

Example of a valid expression: (-3+sqrt(16/4))/4

Results are displayed as fractions when possible, as well as in their floating point approximation.

This calculator supports the following operators, functions and constants:

Operators

+ - * /: Addition, subtraction, multiplication and division
cis: Use for entering complex numbers in polar form (For example 3cis4 = 3(cos4 + sin4) = 3e^(4i) )

Trigonometric functions

sin: Sine
asin: Inverse sine (sin^-1)
sinh: Hyperbolic sine
cos: Cosine
acos: Inverse cosine (cos^-1)
cosh: Hyperbolic cosine
tan: Tangent
atan: Inverse tangent (tan^-1)

Constants

e: The constant e
i: The imaginary unit
pi: The constant PI (&pi)

Statistics functions

!: Factorial
perm: Permutations
comb: Combinations

Logarithms

ln: Natural Logarithm (base e)
log: Logarithm base 10

Other functions

abs: The absolute value
ans: The result of a previous expression
gcd: Greatest Commmon Divisor (see GCD)
int: The integer portion of a number
lcm: Least common multiple (See LCM for more info)
rand (without parenthesis): Returns a random number between 0 and 1
rand(n): Returns a random number between 0 and n
rand(n,m): Returns a random number between n and m
round: Rounds a number to its closest integer
sqrt: Square root

You can choose to display the results in a different notation. Choose between fixed, floating point, scientific or engineering notation using the preferences button.

Type your expressions directly in the calculator input field or use the on-screen keyboard view.