Math

By Teresa J. Siskin

How To Calculate Water Volume

Calculating the volume of water can sometimes be a bit confusing, but there are some tricks you can make use of, and they make the whole process easier.

Perpendicular yellow arrows in three dimensions

By Ariel Balter, Ph.D.

How To Find A Vector That Is Perpendicular

Sometimes, when you're given a vector, you have to determine another one that is perpendicular. Here are a couple different ways to do just that.

By Mark Stansberry

How To Calculate Variance From A Ti84

Variance is a statistical parameter that analyzes the spread, or distribution, of data. Here's how to calculate it quickly.

Slightly blurred partial derivative equations

By Karl Wallulis

How To Calculate FXY Partial Derivatives

Derivatives are a pretty important thing in calculus, as are partial derivatives. Fortunately, the latter is relatively straightforward to calculate.

Triangle drawn on blackboard with points and sides labelled

By Tatyana Ivanov

How To Solve For X In A Triangle

Solving for sides and angles in a triangle is a common problem in geometry. When X denotes one of the angles, the calculations won't be too difficult.

Calculator and pencil on stack of notepads

By Carter McBride

How To Calculate An Aggregate

Sometimes in life, it might prove helpful to know what an aggregate is and how to find it. Both the answer to that question and the process are simple, though.

Scientific calculator on a yellow notebook with a white pencil, glasses, and a table plant

By Tiffany Betts

How To Use A Calculator For Trigonometry

Trigonometric functions have a lot of real-life applications across many fields, so it's pretty important to know how to use a calculator to work with them.

Close up of a speedometer reading about 230

By Kim Lewis

How To Convert Hertz To Motor Rpm

You might find frequencies given in terms of hertz, but when it comes to cars, rpm might be a more helpful unit. Here's how you can convert between them.

Close up of engine with shiny carburetors

By Mark Kennan

How To Convert HP To KVA

Horsepower is an important unit when it comes to the power that something can output, but in case you want to see that figure in kVA, here's how to do that.

Hand holding pen over page with quadratic equations

By Sky Smith

How To Factor Polynomials Of Degree 3

Factoring polynomials can be a helpful process, but high-degree ones can get a little tricky. Here's a guide for when you encounter third-degree polynomials.