# Elementor #1409

Depending on the tasks and purpose, calculators are divided into basic, special, engineering (scientific), financial and many others. Special programs embedded into websites are also called calculators. With their help, you can perform all sorts of calculations much faster.

# Calculator reference

Mathematics

The section includes: geometry, arithmetic, linear algebra, mathematical analysis, analytical geometry.

Geometry

Area of flat figures

- Area, and diameter of the circle
- Calculating the area of a triangle
- Find the area of a right triangle
- Area of an isosceles triangle
- Square area
- Rectangle area
- Rhombus area calculator
- Parallelogram area calculator
- Calculation of the area of the trapezoid
- Ellipse area calculator
- Calculation of the area of the ring
- Quadrangle area
- Find the area of a sector of a ring
- Circle sector area
- Circle segment area
- Regular polygon area
- Cone area

Perimeter of plane figures

Figure side

Height of the figure

Area of volumetric figures

Angle

Volume

- Pyramid Volume
- Cube volume
- Cylinder volume
- Cone volume
- Ball volume
- The volume of the parallelepiped
- Prism volume
- he volume of the tetrahedron
- Octahedron volume
- The volume of the truncated pyramid
- Volume of the truncated cone
- Volume of the ball layer
- The volume of the ball sector
- Volume of the ball segment
- Reverse permutation
- The area of the ball

Mathematics

Numbers

- Percentage change of a number
- Square root, calculator
- Common factor and multiple
- Mean Median Mode
- Five Number Summary
- Standard Deviation
- Prime Factorization
- N Choose K Calculator
- Factorial Calculator
- GCD/LCM Calculator
- Matrix Determinant
- Maximum and minimum number
- Combinatorics — permutations, combinations, placements
- Find the number of permutations
- The number of inversions in the permutation
- Cyclic permutation
- Decomposition of the Newton Binomial
- Permutation order

Calculators

Theorems, functions and equations

Universal calculators (geometry)

- Equilateral Triangle Calculator
- Square Calculator
- Pentagon Calculator
- The calculator of the nine-sided
- Octagon Calculator
- Heptagon Calculator
- Hexagon Calculator
- Polygon Calculator
- Calculator of a regular polygonal ring
- Semicircle Calculator
- Circle Calculator
- Circle Sector Calculator
- Circular Segment Calculator
- Quarter Circle Calculator
- Ellipse Calculator
- Relo Triangle Calculator
- Cycloid Calculator
- Astroid Calculator
- Oval Calculator
- Spherical Triangle Calculator

Analytic geometry

Point, line, plane

- The equation of a line calculator
- Distance between points
- Distance between a point and a straight line
- Distance between a point and a plane
- Distance between parallel planes
- The center of the triangle
- The center of the circumscribed circle of the triangle
- A point inside a triangle
- Angle between straight lines
- Angular coefficient of a straight line
- Angle between planes
- Mutual arrangement of planes
- The orthocenter of the triangle
- The center and radius of an inscribed circle in a triangle

Fractions

Various calculators

This section contains calculators for different areas of household use.

Physics

Date and time

Physical quantities