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Closure Property (Addition)
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Polynomials - Basic
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Linear Algebra
Cartesian Coordinate
Cylindrical Coordinate
Spherical Coordinate
Transform from Cartesian to Cylindrical Coordinate
Transform from Cartesian to Spherical Coordinate
Transform from Cylindrical to Cartesian Coordinate
Transform from Spherical to Cartesian Coordinate
Definition of a Matrix
Definition of Zero Matrix
Definition of Identity Matrix
Definition of an Inverse of a Matrix
Definition of the Determinant
Definition of Triangular Matrices
Divergence Theorem (Gauss' Theorem)
Stokes' Theorem
Two Null Identities
Equality of Matrices
Elementary Matrices
Matrix Addition
Matrix Multiplication
Scalar Multiplication
The Transpose of a Matrix
Gradient of a Scalar Field
Divergence of a Vector Field
Curl of a Vector Field
Properties of Matrix Operations
Properties of the Identity Matrix
Properties of Matrix Multiplication
Properties of Transposes
Properties of Determinants
Properties of Inverse Matrices
Calculus
Derivatives Basic
Differentiation Rules
Derivatives Functions
Integral (Definite)
Integral (Indefinite)
Derivatives of Simple Functions
Derivatives of Exponential and Logarithmic Functions
Derivatives of Hyperbolic Functions
Derivatives of Trigonometric Functions
Integrals of Simple Functions
Integrals of Exponential and Logarithmic Functions
Integrals of Hyperbolic Functions
Integrals of Trigonometric Functions
Complex Number
Equality
Operations
De Moivre's Theorem
Geometry
Area of a Circle
Area of an Ellipse
Area of a Parallelogram
Area of a Polygon
Area of a Rectangle
Area of a Square
Area of a Trapezoid
Area of a Triangle
Perimeter of a Circle
Perimeter of a Parallelogram
Perimeter of a Polygon
Perimeter of a Rectangle
Perimeter of a Square
Surface Area of a Cone
Surface Area of a Cube
Surface Area of a Cuboid
Surface Area of a Cylinder
Surface Area of an Ellipsoid
Surface Area of a Sphere
Volume of a Cone
Volume of a Cube
Volume of a Cuboid
Volume of a Cylinder
Volume of an Ellipsoid
Volume of a Sphere
Trigonometry
Basic Relationships
Basic Trigonometric Functions
Special Trigonometric Functions
Pythagoras
Right Triangle
Shifts and Periodicity
Symmetry
Law of cosines
Law of sines
Law of tangents
Addition of Trigonometric Functions
Product to Sum
Sum to Product
Conversion of Trigonometric Functions
Derivatives of Trigonometric Functions
Integrals of Trigonometric Functions
Other Online Resources
Perimeter of a Circle
r : is the radius of the circle
d : is the diameter of the circle
The perimeter is given by:
or
Online Perimeter Calculator.
(This will open a new window).
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