• From: Juneau, AK, USA
  • Registered: 2010-08-19
  • Posts: 450

Topic: y=mx+b graphing

I was wondering if there was a good y=mx+b and other graphing program out there for linux. I didn't want to clog up help and support though so I'm posting it here.

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  • From: Ontario, Canada
  • Registered: 2009-06-29
  • Posts: 1,420

Re: y=mx+b graphing

you could try mathway beta (google it), its online but has a pretty good graph component that easily handles those graphs.

just call me...
~FSM~
  • From: Juneau, AK, USA
  • Registered: 2010-08-19
  • Posts: 450

Re: y=mx+b graphing

I tried it, it works great! now if I could get one that would run on my computer and not online. that would be perfect. I tried kalgebra but it's kde so it looks weird, and I couldn't figure out how to get it to work.

EDIT: wow. 100th post.

Last edited by crunchy (2011-03-03 23:41:18)

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  • From: Chattanooga TN
  • Registered: 2009-09-13
  • Posts: 483

Re: y=mx+b graphing

^ Crunchy: congratulations! big_smile

Leave the gun. Take the cannoli.
  • Registered: 2011-03-03
  • Posts: 308

Re: y=mx+b graphing

If you're still looking here are some:

Grace
http://plasma-gate.weizmann.ac.il/Grace/

RLPlot
http://rlplot.sourceforge.net/

Jplot (old but only needs java)
http://jplot.sourceforge.net/

Scidavis

I think Scidavis, Grace and RLplot are in the repos.

"It does not require many words to speak the truth." - Chief Joseph, Nez Perce tribe
  • From: California, USA
  • Registered: 2008-11-29
  • Posts: 8,647

Re: y=mx+b graphing

Try wxmaxima from the repos.

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  • From: Juneau, AK, USA
  • Registered: 2010-08-19
  • Posts: 450

Re: y=mx+b graphing

I have grace and wxmaxima installed now. I will try to figure out how to use them tomorrow. thanks! smile

registered Linux user: #533379
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Whenever someone calls me a computer 'nerd' or a 'Unix-based-system'
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  • GuruX
  • #! Die-hard
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  • Registered: 2009-01-18
  • Posts: 522

Re: y=mx+b graphing

There is also an emulator for Texas Instruments calculators. It's called tiemu. You'll need a ROM for it though. They can probably be found on the net. Tiemu also provides a ROM called PedRom.

  • From: Stockholm, Sweden
  • Registered: 2009-01-23
  • Posts: 241

Re: y=mx+b graphing

crunchy wrote:

I have grace and wxmaxima installed now. I will try to figure out how to use them tomorrow. thanks! smile

Wxmaxima is very capable with algebra as well as numerical skills but for your task it is a really big gun to kill a gnat with.

Scilab is also very capable and very easy to learn if you have used matlab. Yet another too big gun though.

I used Grace some in the past and could produce nice graphs with it but found it too quirky for my taste.

Why not use your favorite spread sheet instead? Both Gnumeric and OO Calc will work for you unless I missed something.

/Martin

MartinRF's Website

  • From: California, USA
  • Registered: 2008-11-29
  • Posts: 8,647

Re: y=mx+b graphing

I know spreadsheets can do graphs, but can they do algebraic graphs? If so how?

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  • From: Stockholm, Sweden
  • Registered: 2009-01-23
  • Posts: 241

Re: y=mx+b graphing

I didn't see algebra was a requirement, I homed in on creating a graph.
What is an algebraic graph btw?
To create a graph you need to enter the numerical universe, or?

/Martin

MartinRF's Website

  • From: California, USA
  • Registered: 2008-11-29
  • Posts: 8,647

Re: y=mx+b graphing

The title mentions y=mx+b which is Algebra. y and x are variables whereas m and b are constants so an example would be:

y=2x+9

which would look like:
http://www.mathway.com/graph_image.aspx?p=y=2x+9?p=520?p=450?p=False?p=False?p=False?p=False?p=False?p=False?p=True?p=True?p=?p=?p=?p=?p=4

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  • Registered: 2011-03-04
  • Posts: 28

Re: y=mx+b graphing

The only way I'm aware of to create an algebraic graph in a spreadsheet is to create a column of interesting X values and then calculate the Y values in another column for each X value according to the algebraic formula.  Obviously, for higher order polynomials, this won't generate a continuous function, but it should serve most purposes.

  • nore
  • #! CrunchBanger
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  • From: 62° 53′ N
  • Registered: 2009-11-28
  • Posts: 141

Re: y=mx+b graphing

For geometry, algebra and dynamic plotting I prefer Geogebra. It's in Debian repositories:

sudo apt-get install geogebra

http://packages.debian.org/squeeze/all/geogebra

There's a great community producing worksheets and wiki articles.
http://www.geogebra.org/
Here's linear equations to you, Cruncy:
http://www.geogebra.org/en/wiki/index.p … _Equations

Last edited by nore (2011-03-05 06:48:03)

  • From: Stockholm, Sweden
  • Registered: 2009-01-23
  • Posts: 241

Re: y=mx+b graphing

Elviswind wrote:

The only way I'm aware of to create an algebraic graph in a spreadsheet is to create a column of interesting X values and then calculate the Y values in another column for each X value according to the algebraic formula.  Obviously, for higher order polynomials, this won't generate a continuous function, but it should serve most purposes.

Which is what I think crunchy wanted to do.
As for the result not being continuous, that applies to all other solutions too. Either you or the program decide how big steps to take.

Hmm, I just decided to test Gnumeric for creating a graph of sinc(x). I have never really used Gnumeric so the formatting of the plot is maybe not due to limitations in Gnumeric:
sinc(x) plotted in Gnumeric
I created the x-column by typing the first two values by hand (I did not trust Gnumeric to sort out sin(0)/0 and the third is simply the second + step (= 0.1 in this case) and the rest are just copy-and-paste of the third row.

It is not the best looking plot I have seen but it only took a few minutes to create.

/Martin

Last edited by MartinRF (2011-03-05 09:44:30)

MartinRF's Website

  • From: Juneau, AK, USA
  • Registered: 2010-08-19
  • Posts: 450

Re: y=mx+b graphing

these all look like good ideas unfortunately the one that looks the closest to what I want is fsm's "mathway beta" I'm only in the 8th grade and half-way through algebra so I don't know that much about graphing yet. I can understand how to use martinrf's idea with gnumeric (even though I uninstalled it and went with libreoffice) I think that it would work in roughly the same way.

@nore I'll try geogabra later today

registered Linux user: #533379
registered #! user: #6769
Whenever someone calls me a computer 'nerd' or a 'Unix-based-system'
all I can think is: You just wait. In a couple of years. I'll be your IT. Then where will you be!
  • From: Juneau, AK, USA
  • Registered: 2010-08-19
  • Posts: 450

Re: y=mx+b graphing

thank you nore. I have found EXACTLY what I was looking for in a program. it's simple, and easy to use. it even gives you the answer in ax+by=c form! perfect. it does it in y=mx+b form too!!

I love it thank you soooo much guys! big_smile big_smile big_smile big_smile

registered Linux user: #533379
registered #! user: #6769
Whenever someone calls me a computer 'nerd' or a 'Unix-based-system'
all I can think is: You just wait. In a couple of years. I'll be your IT. Then where will you be!