- 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
This online calculator finds the water boiling temperature given the atmospheric pressure in millimeters of mercury.

- 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

Binary, one's complement (inverse) and two's complement codes (calculator was created by user's request)

- Capacitor in Direct Current Circuit
These online calculators computes various parameters for charging and discharging the capacitor with the resistor

- 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

- 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.

- Combinatorics. Combinations, arrangements and permutations
This calculator calculates number of combinations, arrangements and permutations for given n and m

- 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.

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

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

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