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What is the difference between formula and equation?

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Rasoul Khoshravan

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Jul 31, 2010, 2:30:33 AM7/31/10
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What is the difference between formula and equation?

Glenn Knickerbocker

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Jul 31, 2010, 8:57:35 AM7/31/10
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On Fri, 30 Jul 2010 23:30:33 -0700 (PDT), Rasoul Khoshravan wrote:
>What is the difference between formula and equation?

A formula is a single expression that yields some previously unknown
value. For instance, the formula for the roots of a quadratic equation
is:

(-b +/- sqrt(b**2 - 4*a*c)) / 2a

An equation is a statement that two expressions are equal. A formula may
be shown in an equation:

x = (-b +/- sqrt(b**2 - 4*a*c)) / 2a

but an equation does not necessarily contain a formula:

a*x**2 + b*x + c = 0

ŹR

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Frederick Williams

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Aug 7, 2010, 9:45:21 AM8/7/10
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Rasoul Khoshravan wrote:
>
> What is the difference between formula and equation?

In the context of formal logic, a formula is a sequence of symbols (that
may or may not include "=") of a particular kind. An equation is a
formula that does contain "=".

--
I can't go on, I'll go on.

Vladimir Baykov

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Aug 9, 2010, 6:50:48 AM8/9/10
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In order to solve EQUATION it is necessary to know
the way of SOLVING.

To count according to FORMULA it is enough to do
all the operations included in a formula.

"Rasoul Khoshravan" <khosh...@gmail.com> schrieb im Newsbeitrag
news:d247b57d-cb1b-4fb1...@w12g2000yqj.googlegroups.com...


> What is the difference between formula and equation?

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