- Altitude of a triangle
This online calculator computes the length of a altitude of a triangle, given the lengths of edges of a triangle.

- Circular segment
Can calculate area, arc length,chord length, height and perimeter of circular segment by radius and angle.

- Combinatorics. Generator of combinations.
Combinatorics. Generator of combinations of m from n.

- Complex fraction
This online calculator evaluates arithmetic expressions with common or complex fractions.

- Converting degrees to radians
Converts radians to degrees, minutes and seconds

It finds one variable function derivative. Step by step differentiation solution is also provided.

- Cubic equation
Solution of cubic equation using Vieta's formulae. Created by user request

- Inverse trigonometric functions
This calculator determines values of inverse trigonometric functions (arcsine, arccosine, arctangent, arccotangent, arcsecant, arccosecant) and outputs it with different measurement units (degrees, radians, minutes, etc)

- Least Common Denominator for several fractions
Least Common Denominator for several fractions

- Logarithm
This online calculator produces the logarithm of a given number with a given base. It computes also the natural logarithm and the common logarithm (decimal logarithm).

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

- Modular Multiplicative Inverse
This calculator calculates modular multiplicative inverse of an given integer a modulo m

- Percentage
This online calculator gives the percentage of the value. It also calculates the percentage of the sum (e.g. the income tax of the net salary) and the percentage of the difference (e.g. VAT of the gross amount).

- Root and power
This calculator outputs desired root and power of entered number

- 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.