- Regular polygon area from circumcircle
Calculates the area of the circumcircle and of the regular polygon from radius of circumcircle and number of sides

- Regular polygon, number of sides and length of side from incircle and circumcircle radii
This online calculator finds number of sides and length of side of regular polygon given the radii of incircle and circumcircle

- Regular polygon. Incircle and circumcircle
This online calculator determines parameters of circumcircle and incircle of a regular polygon

- Relative humidity to absolute humidity and vise versa calculators
First calculator converts relative humidity to absolute humidity for given temperature and barometric pressure. Second calculator converts absolute humidity to relative humidity for given temperature and barometric pressure

- Saturation vapour pressure
This online calculator computes saturation vapour pressure for given temperature and atmospheric (barometric) pressure

This calculator outputs desired root and power of entered number

- Secant method
The secant method is a root-finding algorithm that uses a succession of roots of secant lines to better approximate a root of a function f.

- Second, third and other derivatives
Evaluates first, second third and other derivatives of a single argument function

- Side length of a right triangle
Calculates the side length of a right triangle from two other sides using Pythagorean theorem. Created by user's request

- Side length of a triangle
This calculator computes side length of a triangle given two sides and angle between them (law of cosines)

- Side length of the regular polygon
Calculates the side length of the regular polygon circumscribed or inscribed to a circle. Created by user's request

- Side of regular polygon from polygon area
Calculates the side length of regular polygon given the area of the regular polygon and number of sides

Construction of a sine wave with the user's parameters

- Simple math in any numeral system
This online calculator supports simple math (addition, subtraction, division, multiplication and power) for numbers expressed in any numeral system - binary, octal, hexadecimal, from the base 2 to base 36

- Solution of a system of 3 linear equations
Solution of a system of 3 linear equations with 3 variables

- Solution of buckets and tank problem
This online calculator find a solution to the question how to fill tank with certain amount of water using two buckets of different size

- Solution of nonhomogeneous system of linear equations using matrix inverse
Solution of nonhomogeneous system of linear equations using matrix inverse

- Solution of quadratic equation
Solution of quadratic equation, including complex roots

- Solving limit problems using L'Hospital's Rule
Solving 0/0 and ∞/∞ limit problems using L'Hospital's Rule.

- Sound Speed in Gases
This online calculator computes speed of sound in an ideal gas.

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