Where can I find a comprehensive list of equations?

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Discussion Overview

The discussion revolves around the search for a comprehensive list of equations, particularly those relevant to physics. Participants explore various resources, including websites and books, while addressing the challenges of compiling such a list and the context in which equations are used.

Discussion Character

  • Exploratory
  • Debate/contested
  • Technical explanation

Main Points Raised

  • One participant requests a comprehensive list of equations, seeking details about their functions and units.
  • Another participant questions the feasibility of compiling a complete list of all equations, comparing it to asking for all recipes or proverbs.
  • Some participants suggest specific websites, such as MathWorld and HyperPhysics, as resources for equations.
  • A participant expresses skepticism about the value of collecting equations from disparate areas of physics, arguing that their relevance may be lost without context.
  • Concerns are raised about the mixing of units and inappropriate notation in the proposed lists of equations.
  • One participant describes a program they are developing that will utilize equations and aims to include a search feature and descriptions for each equation.
  • Several participants emphasize the importance of understanding the underlying concepts in physics rather than merely accumulating equations.
  • Suggestions for specific equations, such as Einstein's field equations, are made as potential inclusions in the discussion.

Areas of Agreement / Disagreement

Participants express a range of views, with no consensus on the feasibility of compiling a comprehensive list of equations. Some agree on the usefulness of certain resources, while others challenge the idea of mixing equations from different branches of physics.

Contextual Notes

Participants note limitations regarding the mixing of units and the appropriateness of notation, suggesting that these factors could lead to confusion in understanding the equations.

Who May Find This Useful

Individuals interested in physics, mathematics, or engineering who are seeking resources for equations and their applications may find this discussion relevant.

Nim
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Does anyone know where I can find a website or know of a book with a comprehensive list of equations? I want to know what they do, what units they use, etc... Some sort of reference you know?
 
Mathematics news on Phys.org
equations for what?
 
come on. what kind of question is that? a list of all the equations in the world?

thats like asking for a list of all the recipes in the world, or all the sentences in the world. or all the proverbs in the world, only far, farrrrrrr, more impossible.

think about your question a teeny bit more.
 
Would you like them all in lexical order with relivance to every different subject in the world? :rolleyes:
 
It doesn't have to be all of them, just a lot. Doesn't matter what kind of equations either. I am mostly spending my time looking for ones that deal with physics. Sorry for not being clear enough.
 
Which branch of physics...?I doubt u'll find a book with such equations,just for your astoundment and admiration...

Daniel.
 
dextercioby said:
Tell me if you don't like this site
www.mathworld.com

It's got almost everything.

Daniel.

This site is a lot of help. I didn't find a category about equations, but I did a search and got a lot of results. At the moment I am trying to get a list of the basic science equations.

Code: 
E=M*c²			Energy=DynamicMass*SpeedOfLight²		Joules=Kilograms*Meters Per Second
E=m/sqrt(1-v²/c²)*c²	Energy=Mass/sqrt(1-Velocity²*SoL²)*SoL²         ?
M=m/sqrt(1-v²/c²)*c²	DynamicM=Mass/sqrt(1-Velocity²*SoL²)*SoL²	?
KE=0.5*m*v²		Energy=0.5*mass*velocity²			Joules=0.5*Kilograms*Meters Per Second
KE=P*t			Energy=Power*Time		                Joules=Watts*Seconds
KE=V*I*t		Energy=Voltage*Current*Time		        Joules=Volts*Amps*Seconds
PE=M*C²			Energy=Mass*Speed of Light²		        Joules=Kilograms*Meters Per Second
PE=h*f			Energy=Planck's Constant*Frequency		Joules=?*Hertz
PE=m*g*h		Energy=mass*acceleration of gravity*height	?
P=E/t			Power=Energy/Time			        Watts=Joules*Seconds
P=V*I			Power=Voltage*Current			        Watts=Volts*Amps
P=I²*R			Power=Current²*Resistance			Watts=Amps²*Ohms
P=V²/R			Power=Voltage²/Resistance			Watts=Volts²/Ohms
I=P/V			Current=Power/Voltage			        Amps=Watts/Volts
I=V/R			Current=Voltage/Resistance			Amps=Volts/Ohms (Ohm's Law)
V=P/I			Voltage=Power/Current			        Volts=Watts/Amps
V=I*R			Voltage=Current*Resistance			Volts=Amps*Ohms
R=P/I²			Resistance=Power/Current²			Ohms=Watts/Amps²
R=V²/P			Resistance=Voltage²/Power			Ohms=Volts²/Watts
R=V/I			Resistance=Voltage/Current			Ohms=Volts/Amps
Q=I*t			Charge=Current*Time			        Coulombs=Amps*Seconds
D=S*T			DistanceTraveled=Speed*ElapsedTime		Kilometers=Kilometers Per Second*Seconds
S=D/T			Speed=DistanceTraveled/ElapsedTime		Kilometers Per Second=Kilometers/Seconds
T=D/S			ElapsedTime=DistanceTraveled/Speed		Seconds=Kilometers/Kilometers Per Second
c=n*l			WaveVelocity=Frequency*Wavelength		Meters Per Second=Hertz*Meters
l=c/n			Wavelength=WaveVelocity/Frequency		Meters=Meters Per Second/Hertz
n=c/l			Frequency=WaveVelocity/Wavelength		Hertz=Meters Per Second/Meters
 
look. if you want to understand physics, do not concern yourself with a huge pile of equations. learn the most important ideas. I have it on good authority, that these are the conservation laws.

more knowledgeable input anyone?
 
  • #10
First of all i resent the idea of gathering a pile of equations from all areas of (in this case classical) physics which have nothing in common and whose relevance is totally lost.Basically u jump with ease from equations/equalities in SR to nonrelativistic mechanics and then to elecrticity.It's pointless.
As for units,they are totally mixed up.U can't have both meters & Kilometers,u can have only one species...
Plus the notation is totally unappropriate and would definitely generate confusion...

Daniel.
 
  • #11
It's for a program that I am working on. If you type in an equation it looks at it and cuts it up in pieces and takes the parts that looks like a value needs to be added too and puts it next to a texbox. Once I have a lot of equations, I am going to add a search feature so its easier to find an equation for a certain task. I also want to add a description of each equation eventually.
 
  • #12
Nim said:
It's for a program that I am working on. If you type in an equation it looks at it and cuts it up in pieces and takes the parts that looks like a value needs to be added too and puts it next to a texbox. Once I have a lot of equations, I am going to add a search feature so its easier to find an equation for a certain task. I also want to add a description of each equation eventually.
:rolleyes:

There are many reasons why I think you'll struggle with that, but good luck, remember though equations without context are meaningless as anyone can write down a random equation.
 
  • #13
In that case,i assume u won't be needing our help,we're not encyclopedias of equations...

Daniel.
 
  • #14
dextercioby said:
we're not encyclopedias of equations...

Daniel.

Of course not, I was hoping that you might know of some books or websites that were though.

But since that doesn't seem to possible, and since I seem to be confused about some things like unappropriate notation and the use of measurements, maybe you can point me out to a site that can tell me how to do these things right?
 
  • #16
Last edited by a moderator:
  • #17
Perhaps you should include einsteins field equations (General Relativity)

http://archive.ncsa.uiuc.edu/Cyberia/NumRel/mathmine2.html
 

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