- Traveling Wave Relationship
The relationship of the wave frequency, wavelength and propagation velocity.

- Trigonometric functions
This online calculator computes the values of elementary trigonometric functions, such as sin, cos, tg, ctg, sec, cosec for an angle, which can be set in degrees, radians, or grads.

- Usable volume of tank
This calculator find usable volume of tank, taking into account wall thickness

- Values of one-variable function
This online calculator calculates values of one-variable function given function formula and set of variable values

This calculator computes triangle angles for given triangle sides using cosine law

- Volume of body given the buoyant force
This calculator computes the volume of body given the buoyant force and density of the body, assuming that the buoyant force equals gravity force.

- Volume of geometric shapes
Calculates volume of geometric shapes: cube, prism, pyramid, frustum, cone, cylinder, sphere, ellipsoid.

- Wind Chill Index
This online calculator computes Wind Chill Index using Wind Chill Formula from Environment Canada

- Wind energy and wind power
This online calculator computes kinetic energy of wind and wind power

- Сomputer algebra
Derives a formula from input formulas and input data to calculate remained parameters

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