Matter is made by atoms. The atom has a nucleus and one or …

All matter is made from particles (atoms or molecules) that are in constant motion. …

## Temperature

ATOM Everything is made of matter, people, animals, the Earth itself. By matter …

## Atoms, isotopes, ions and molecules

In engineering, depending on your job description, is very likely to come across …

## Introduction to Ordinary Differential Equations (ODE)

The most basic problem in Numerical Analysis (methods) is the root-finding problem. For …

## The Bisection Method for root finding

Integration by parts is a method to calculate indefinite integrals by using the …

## Integration by parts – indefinite integrals

A tangent line to a function at a point is a line that …

## The easiest way to calculate the tangent of a function

The harmonic mean is another kind of average value for a discrete data …

## How to calculate the harmonic mean

The geometric mean is another type of average which shows the central tendency …

## How to calculate the geometric mean

For a given (discrete) set of data, the arithmetic mean is the representation …

## How to calculate the arithmetic mean

When dealing with trigonometric functions we often have to switch between the two units …

## How to transform from degrees to radians and from radians to degrees

A common approach in trigonometry is to use the unitary circle to represent …

## Trigonometric functions and the unitary circle

For a right triangle we can establish certain relationships between the trigonometric functions, …

## Trigonometric functions basic properties

Trigonometry is a part of mathematics which deals with the study of angles. …

## Introduction to trigonometry

Efficiency has multiple definitions, all of them valid. We can define efficiency as: …

## What is efficiency ?

Gears are a vital component in machines, robotics, vehicles, aerospace products and so …

## How to calculate a gear ratio ?

The crankshaft is a moving part of the internal combustion engine (ICE). It’s …

## Crankshaft

In this tutorial we are going to learn about radicals. In mathematics a …

## Radicals

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