- Doppler Effect in sound
Calculation of frequency and wavelength change for a moving source

- Energy measurement units
Energy unit converter (joules, kilowatt-hour, kilogram force per meter, horsepower per hour, kilocalories)

- Evaluating expressions
This online calculator substitutes a specific value for each variable, and performs the operations, evaluating the given expression.

- Expressing length through different units
Calculator expresses a given length through the different units.

- Extended Euclidean algorithm
This calculator implements Extended Euclidean algorithm, which computes, besides the greatest common divisor of integers a and b, the coefficients of Bézout's identity

Calculates ellipsoid and spheroid volume and surface area.

- Factorial
Online calculator computes factorial of given positive integer (up to 170!)

- Factoring calculator
This calculator generates all pairs of factors for given integer.

- False position method
False position method - is a root-finding algorithm that uses a succession of roots of secant lines combined with bisection method to approximate a root of a function f.

- Fixed-point iteration method
This online calculator computes fixed points of iterated functions using fixed-point iteration method (method of successive approximations)

- Free fall. Distance passed task.
Solution of the falling body and distance passed tasks.

- Function approximation with regression analysis
This online calculator uses several simple regression models for approximation of unknown function given by set of data points.

This online calculator solves systems of linear equations using row reduction (Gaussian elimination) while retaining fractions on all calculation stages. At the end, it returns the results in two forms - as a floating point numbers and as a fractions (with numerator and denominator)

- Gamma function
Calculation of the Gamma function using Lanczos approximation

- Gaussian elimination
The calculator solves the systems of linear equations using row reduction (Gaussian elimination) algorithm. The calculator produces step by step solution description.

- Generator of combinations which satisfy a condition
For elements with weights this calculator can filter out all combinations where total weight is under the specified limit.

- Geometric progression
This calculator computes n-th term and sum of geometric progression

- Golden ratio
This calculator determines proportions according to golden ratio

- Hip roof calculator
This calculator will help you estimate hip roof parameters, including rafters and roof area

- Humidification loads
This online calculator answers question "how to choose" humidifier, by calculating humidification requirements given initial and target relative humidity and building parameters

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