body{margin:0;} noscript{z-index: 10000; position: fixed; display: block; height: 100%; width: 100%; background: #fff;} noscript .fa{font-size: 40px; display:block; color: #daa520;} noscript div{margin-top: 6%; padding-left: 20px; padding-right: 20px; text-align: center;} ! You must have JavaScript enabled to use this site.

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Lesson Settings & Tools

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Concept

Formula

A formula specifies a relation between two or more variables and is usually expressed as an equation. Formulas can contain one or more constants such as

π

e

, which are often represented by different symbols such as Greek letters.

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