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Equation

Equation

1. A making equal; equal division; equality; equilibrium. Again the golden day resumed its right, And ruled in just equation with the night. (Rowe)

2. (Science: mathematics) An expression of the condition of equality between two algebraic quantities or sets of quantities, the sign = being placed between them; as, a binomial equation; a quadratic equation; an algebraic equation; a transcendental equation; an exponential equation; a logarithmic equation; a differential equation, etc.

3. (Science: astronomy) a quantity to be applied in computing the mean place or other element of a celestial body; that is, any one of the several quantities to be added to, or taken from, its position as calculated on the hypothesis of a mean uniform motion, in order to find its true position as resulting from its actual and unequal motion.

4. Equation box, or Equational box, a system of differential gearing used in spinning machines for regulating the twist of the yarn. It resembles gearing used in equation clocks for showing apparent time.

5. (Science: astronomy) equation of the center, the difference between the place of a planet as supposed to move uniformly in a circle, and its place as moving in an ellipse.

Origin: L. Aequatio an equalizing: cf. F. Equation equation. See Equate.


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GraphPad Prism

I know this thread is out of date but I hope this information will reach others that are facing a similar question. The 4-parameter logistic model equation assumes symmetry around the inflection point whereas the 5-parameter logistic model equation takes into account the asymmetry that is present ...

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by fcs
Mon Jul 27, 2009 11:31 pm
 
Forum: General Discussion
Topic: GraphPad Prism
Replies: 7
Views: 1381

Hardy Weinberg eqilibrium-HELP

... 1 where q^2 = (1/400) so q = (1/20), therefore p = 1 - (1/20) = (19/20) Which means 2pq = (2)(19/20)(1/20) = (19/200) check this with the original equation: (19/20)^2 + (19/200) + (1/400) = 1 It's been a couple of years since I've done these, but I think that works.

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by AstusAleator
Wed Jun 17, 2009 6:11 am
 
Forum: Evolution
Topic: Hardy Weinberg eqilibrium-HELP
Replies: 1
Views: 109

hardy-weinberg HELP

Hello, I am having trouble understanding how to use the hardy-weinberg equilibrium equation. I understand that the allelic frequencies must always add to 100% (i.e. p+q = 1) but I don't understand how to do a few questions. If AA = 0.50, Aa = 0.25 and aa = 0.25, ...

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by karenkay
Sun Jun 07, 2009 7:00 pm
 
Forum: Genetics
Topic: hardy-weinberg HELP
Replies: 4
Views: 203

hardy-weinberg HELP

Hello, I am having trouble understanding how to use the hardy-weinberg equilibrium equation. I understand that the allelic frequencies must always add to 100% (i.e. p+q = 1) but I don't understand how to do a few questions. If AA = 0.50, Aa = 0.25 and aa = 0.25, ...

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by karenkay
Sun Jun 07, 2009 6:59 pm
 
Forum: Evolution
Topic: hardy-weinberg HELP
Replies: 1
Views: 86

Re: Any SOLID arguments against evolution?

... for the DNA which is a much longer molecule?! Here's another. Evolution is built on billions of years because it has to be. Take it out of the equation and it's over. Im not a nuclear physicist so I'm asking. How much hydrogen would it take for the sun to burn for 4.5 billion years? I know ...

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by AFJ
Sat May 30, 2009 2:36 am
 
Forum: Evolution
Topic: Any SOLID arguments against evolution?
Replies: 106
Views: 16666
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