News tagged with formula

The importance of long chain fatty acids in early life

Fats are essential constituents of breast milk. They supply the infant with energy, and are also essential for growth and development. Some fatty acids, key components of dietary fats, play an important role in a child's ...

Jul 02, 2015
popularity30 comments 1

Fewer US hospitals send new moms home with formula

(HealthDay)—While the percentage of hospitals that send breast-feeding mothers home with formula packs has fallen dramatically during the last several years, about one-third of U.S. hospitals still do so, newly released ...

May 26, 2015
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Device for guided surgery of deviations in long bones

CEU-UCH Cardenal Herrera University patented a device for surgeries to correct deviations in long bones. The research team used the 3D simulation of an affected bone to determine the mathematical formula that for designing ...

Jan 27, 2015
popularity6 comments 0

Formula

In mathematics, a formula (plural: formulae or formulas) is an entity constructed using the symbols and formation rules of a given logical language.

In science, a formula is a concise way of expressing information symbolically (as in a mathematical or chemical formula), or a general relationship between quantities. Colloquial use of the term in mathematics often refers to a similar construct.

Such formulae are the key to solving an equation with variables. For example, determining the volume of a sphere requires a significant amount of integral calculus; but, having done this once, mathematicians can produce a formula to describe the volume in terms of some other parameter (the radius for example). This particular formula is:

Having obtained this result, and knowing the radius of the sphere in question, we can quickly and easily determine its volume. Note that the quantities V, the volume, and r the radius are expressed as single letters. This convention, while less important in a relatively simple formula, means that mathematicians can more quickly manipulate larger and more complex formulae.

Expressions are distinct from formulae in that they cannot contain an equals sign; whereas formulae are comparable to sentences, expressions are more like phrases.

In a general context, formulae are applied to provide a mathematical solution for real world problems. Some may be general: F = ma, which is one expression of Newton's second law, is applicable to a wide range of physical situations. Other formulae may be specially created to solve a particular problem; for example, using the equation of a sine curve to model the movement of the tides in a bay. In all cases however, formulae form the basis for all calculations.

This text uses material from Wikipedia, licensed under CC BY-SA

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