# Mathematics

## Mathematical rules and laws - areas, volumes, exponents, trigonometric functions and more

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### Algebraic Expressions and Formulas

Principal algebraic expressions and formulas

### Angle Converter

Convert between angle units

### Area Survey App

Online calculator app to make an exact plot of a surveyed area - like a room, a property or any 2D shape

### Area of Intersecting Circles

Calculate area of intersecting circles

### Areas of Geometric Shapes

Areas, diagonals and more - of geometric figures like rectangles, triangles, trapezoids ..

### Binary, Octal and Hexadecimal Numbers

Decimal, binary, octal and hexadecimal numbers

### Binomial Theorem

Binomial theorem for positive integers

### Chord Length when Dividing a Circle in Equal Segments

Chord length for dividing the circumference of a circle into equal number of segments

### Circle

The equation of a circle

### Circles within Rectangles

The maximum number of circles packed in a rectangle

### Content of Horizontal or Sloped Cylindrical Tanks or Pipes

Volume of partly filled horizontal or sloped cylindrical tanks or pipes - online calculator

### Converting between Polar and Cartesian Coordinates

Convert between Cartesian and Polar coordinates

### Decimal System Prefixes

Prefix Names of Multiples and Submultiples of Units

### Differential Calculus

Derivatives and differentiation

### Distance between Two Points in 3D

Distance between two points in a 3D coordinate system - online calculator

### Elementary Curves

Ellipse, Circle, Hyperbola, Parabola - Parallel, Intersecting and Coincident Lines

### Elementary Surfaces

Ellipsoid, Sphere, Hyperboloid, Cone ...

### Equal Area Circles and Squares

Radius and side length of equal area circles and squares

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### Equations with Two Unknowns

Online calculator for equations with two unknowns

### Exponents - Powers and Roots

Fractional and integer exponents laws

### Factorials

The product of all positive integers

### Fraction-Decimal Equivalents

Inches - fractional decimal equivalents

### Hexagons and Squares - Distance Across Corners

Distance across corners of hexagons and squares

### Hyperbolic Functions

Exponential functions related to the hyperbola

### Law of Cosines

Calculate one side of a triangle when the angle opposite and the other two sides are known

### Law of Sines

Find angles of a general triangle

### Laws of Indices

Simplifying calculation involving indices

### Logarithms

Rules of logarithms - log_{10} and log_{e} for numbers ranging 1 to 1000

### Mean, Median and Mode Values for Discrete Data Sets

Calculate arithmetic mean, median and modal values from sets of discrete data

### Minutes to Degrees

Convert from minutes to degrees

### Natural Trigonometric Functions

Sine, Cosine and Tangent - Natural Trigonometric Functions

### Oblique Triangle

Oblique triangle formulas

### Prime Numbers

Numbers up to 1000

### Pythagorean Theorem

The Pythagorean theorem is often used for squaring

### Radians

The radian - a unit of angle measure - angular velocity

### Ratio and Proportion

Ratio and proportion between two quantities

### Regular Polygons

Area of regular polygons

### Right Triangle

Right triangle relationships

### Rollers on a Shaft

Geometry of rollers on a shaft - or circles on the outside of an inner circle

### Scientific Calculator

Online scientific calculator

### Smaller Circles in Larger Circles

A tool to estimate the number of smaller circles that fits in a larger circle - or how many pipes or wires that fits in a larger pipe

### Square, Cube, Square Root and Cubic Root

for numbers ranging 1 to 100

### Squares, Cubes and Roots

Numbers - squares, cubes, square roots and cube roots

### Squaring with Diagonal Measurements

If square - diagonal measurements will be equal

### Standard Differentials and Integrals

Differentials and integrals

### Standard Form, Scientific and Engineering Notation

Writing of numbers

### Taylor Series

A function as an infinite sum of terms

### Vector Addition

Online vector calculator - add vectors with different magnitude and direction

### Volume and Surface of some Common Solids

Surface and volume of solids like rectangular prism, cylinder, pyramid, cone and sphere - online calculator