## Archive for the ‘Education and Communications’ Category

## How to Calculate the Laplace Transform of a Function

Four Methods:TerminologySolving the transformDiscontinuous FunctionsUsing Properties of Laplace TransformsCommunity Q&A The Laplace transform is an integral transform which allows a differential equation to be converted into a (hopefully) simpler algebraic equation, making it easier to solve. While you can use tables of Laplace Transforms, it is never a bad idea to know how to do the transform yourself. 1 Know whether you are trying to find the unilateral (one-sided) Laplace transform or the bilateral (two-sided) Laplace transform of the function. If the type of Laplace transform is not specified, it…

## How to Calculate the Case Cube of a Box

“Case cube” is a measurement used in wholesale purchasing and shipping. The case cube denotes how much volume, or 3-dimensional space, a case of any given item will take up in your warehouse. The case cube may be measured in cubic feet or cubic meters. In both cases, although the single case cube measurement tells you how much space the case takes up, it doesn’t break that information down into 3 dimensions. For example, how long, wide and tall each box is. So knowing the actual dimensions of a case…

## How to Calculate Volume of a Box

Two Methods:Calculating the Volume of Rectangular BoxesCalculating Different Shaped BoxesCommunity Q&A Whether you need to to mail a package or pass you next test, finding the volume of a box is easy. Volume is the measure of how big an object is in three dimensions, so the volume of a box measure how much room there is inside of the box. To find it, you need to make a few simple measurements and then multiply them. Method 1 Calculating the Volume of Rectangular Boxes 1 Understand the volume of a…

## How to Calculate the Radius of a Circle

Four Methods:Calculating the Radius when you know the DiameterCalculating the Radius when you know the CircumferenceCalculating the Radius When You Know the AreaCalculating the Radius When You Know the Coordinates of Three Points on the CircleCommunity Q&A The radius of a circle is the distance from the center of the circle to its edge. The diameter of the circle is the distance all the way across it, and is equal to two times the radius.[1] You will often be asked to calculate the radius of the circle based on other…

## How to Calculate the Volume of a Triangular Prism

In math, a triangular prism is a three-sided polyhedron with two parallel triangular bases and three rectangular faces. It should not be confused with a pyramid. If you want to calculate the volume of a triangular prism, all you have to do is find the area of one of the triangular bases and multiply it by the height of the shape. 1 Identify the base and height of one of the triangular bases. The triangular bases of the triangular prism will have the same dimensions, so it doesn’t matter which…

## How to Calculate Ratios

Three Parts:Understanding RatiosUsing RatiosCatching MistakesCommunity Q&A Ratios are mathematical expressions that compare two or more numbers. They can compare absolute quantities and amounts or can be used to compare portions of a larger whole. Ratios can be calculated and written in several different ways, but the principles guiding the use of ratios are universal to all. Part 1 Understanding Ratios 1 Be aware of how ratios are used. Ratios are used in both academic settings and in the real world to compare multiple amounts or quantities to each other. The…

## How to Calculate Pi by Throwing Frozen Hot Dogs

Two Methods:Calculation ChartCalculating Pi by Throwing Frozen Hot DogsCommunity Q&A Throwing a pie in someone’s face is good. Throwing food to discover pi is better. Believe it or not, of all the countless ways to approximate the most prolific irrational number in the universe, there are none quite as interesting or as surprisingly satisfying as throwing perfectly good food around your kitchen. In fewer steps than it takes to circumscribe your house in a circle of baguettes, you, too, can easily add a slice of pi into your dinner menu…

## How to Calculate Standard Deviation on a TI 89 Titanium Graphing Calculator

This will show you how to calculate Standard Deviation on a TI-89 titanium graphing calculator. These steps should be the same for the regular TI-89 graphing calculator also. 1 Turn on the calculator and go to the home screen. 2 Enter the data you want to find the Standard Deviation for as a set. Do this by entering the data using set brackets {}, you get them by hitting the blue “2nd” key then the open parentheses “(” where you notice that “{” is labeled in blue above “(“. Then…

## How to Calculate Stability of a Model Rocket

It is important in model rocketry to ensure your rocket is stable. A stable rocket will fly as intended, while an unstable rocket will fly in an unpredictable pattern creating a dangerous situation. Stability is extremely important when building a rocket from scratch, but it is not a bad habit to test the stability of model rockets built from kits as well. In order for the rocket to be stable, the center of pressure must be behind (closer to the tail than) the center of gravity. 1 Find the center…

## How to Calculate Percentages

Four Methods:Help Calculating PercentagesCalculating the Percentage of a WholeWorking Backwards From a PercentageCalculating DiscountsCommunity Q&A Percentages are all around us—from 3.4% APR to 80% off clearance. It is helpful to know what they are, what they mean, and how to calculate them. It is not as difficult as you might think, and the way to do it is shown simply below. Help Calculating Percentages Convert Decimal to Percent Cheat Sheet Convert Fraction to Percent Cheat Sheet Method 1 Calculating the Percentage of a Whole 1 Know what a percentage is….