- Bisection method
The bisection method in mathematics is a root-finding method that repeatedly bisects an interval and then selects a subinterval in which a root must lie for further processing. The method is also called the interval halving method.

- Boiling point dependence on the altitude above sea level
- Calculation of weight by volume
Calculating the weight by the volume of material with matter density reference book

- Calculation of weight by volume
Calculating the weight by the volume of material with matter density reference book

- Calculator of area of a triangle using Hero's formula
- Capacitor in Direct Current Circuit
These online calculators computes various parameters for charging and discharging the capacitor with the resistor

This calculator calculates number of combinations, arrangements and permutations for given n and m

- Cartesian and polar two-dimensional coordinate systems
This online calculator converts polar coordinates to cartesian coordinates and vice versa.

- Celsius to Fahrenheit calculator explained
- Circle formulae
Circle formulae

- Circular sector
Calculates area, arc length, perimeter and center of mass of circular sector

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

- Circumcircle of a triangle
This online calculator determines the radius and area of the circumcircle of a triangle given the three sides

Combinatorics. Generator of combinations of m from n.

"One of the following characters is used to separate data fields: tab, semicolon (;) or comma(,)":

- Clapeyron-Mendeleev equation. The relationship between the number of moles of gas, the temperature, volume and pressure.
Clapeyron-Mendeleev equation. The relationship between the number of moles of gas, the temperature, volume and pressure.

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

- Cone
- Cone development
Calculator of right circular cone / truncated right circular cone development

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

- Coulomb's law
This online calculator calculates unknown (whether force, charge or distance) using known values using Coulomb's law scalar formula. It can be used to solve physics problems.

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