# Mathematics

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Algebra Cheat Sheet
Algebra cheat sheet for Arithmetic Operations, Exponent Properties, Properties of Radicals, Properties of Inequalities, Properties of Absolute Value, Distance Formula, Complex Numbers, Logarithms and Log Properties, Factoring Formulas, Quadratic Formula, Square Root Property, Absolute Value Equations/Inequalities, Completing the Square, Constant Function, Line/Linear Function, Parabola/Quadratic Function, Circle, Ellipse, Hyperbola, Common Error and Reason/Correct/Justification/Example
Algebra Cheat Sheet
Algebra cheat sheet for Arithmetic Operations, Exponent Properties, Properties of Radicals, Properties of Inequalities, Properties of Absolute Value, Distance Formula, Complex Numbers, Logarithms and Log Properties, Factoring Formulas, Quadratic Formula, Square Root Property, Absolute Value Equations/Inequalities, Completing the Square, Constant Function, Line/Linear Function, Parabola/Quadratic Function, Circle, Ellipse, Hyperbola, Common Error and Reason/Correct/Justification/Example
Linear interpolation and extrapolation with calculator
Linear interpolation is a mathematical method of using the equation of a line in order to find a new data point, based on an existing set of data points. Linear extrapolation is the same as linear interpolation, with the exception of the new data points, which are outside the range of the given (known) data points.
How to calculate the centroid of an area
In this article we are going to explain how to calculate the centroid of an area through numerical integration. The area will be defined as the zone under a curve, delimited by data points. The centroid of an area is equivalent with the centre of gravity of a body.
Taylor Series Approximation
In some cases, in engineering or real world technical problems, we are not interested to find the exact solution of a problem. If we have a good enough approximation, we can consider that we’ve found the solution of the problem.
Complex numbers representation
Tutorial on different methods to represent complex numbers: polynomial, Cartesian, polar, exponential, Moivre's formula and conversion formulas between representations
Law of sines and cosines
Law of sines and cosines
Scilab, Xcos and Fibonacci
Scilab, Xcos and Fibonacci