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Rosanella
General User

Joined: 14 Dec 2007
Posts: 34
Location: London (UK)

 Posted: Wed Aug 26, 2009 3:52 am    Post subject: Graphs of quadratic, cubic curves et all: can the be done? I need to create some graphs charts of quadratic or cubic curves, given a formula , let's say y=ax^2+bx+c or that of a straight line , y=mx+c. Can they be done with Calc? Thank you_________________ Rosanella If we do not try, we will not know. (Ayya Khema)
David
Super User

Joined: 24 Oct 2003
Posts: 5668
Location: Canada

 Posted: Wed Aug 26, 2009 4:28 am    Post subject: No. If using Windows, get either Graphmatica or "Graph", the latter from www.padowan.dk . If using iMac, a good graphing program comes bundled with it. David.
Rosanella
General User

Joined: 14 Dec 2007
Posts: 34
Location: London (UK)

Posted: Wed Aug 26, 2009 6:20 am    Post subject:

 David wrote: No. If using Windows, get either Graphmatica or "Graph", the latter from www.padowan.dk . If using iMac, a good graphing program comes bundled with it. David.

That's great!
Thank you
_________________

Rosanella
If we do not try, we will not know. (Ayya Khema)
ftack
Moderator

Joined: 27 Jan 2003
Posts: 3102
Location: Belgium

 Posted: Wed Aug 26, 2009 6:41 am    Post subject: In Calc, you could do this when you first calculate the data points. Use autofill to fill a series of data, then calculate the Y-value, then create the plot._________________-- GNU/Linux (Ubuntu)
jrkrideau
Super User

Joined: 08 Aug 2005
Posts: 6732
Location: Kingston ON Canada

Posted: Wed Aug 26, 2009 10:11 am    Post subject: Re: Graphs of quadratic, cubic curves et all: can the be don

 Rosanella wrote: I need to create some graphs charts of quadratic or cubic curves, given a formula , let's say y=ax^2+bx+c or that of a straight line , y=mx+c. Can they be done with Calc? Thank you

Not easily. If you need publication quality graphics you may want to check out R http://www.r-project.org/ or gnuplot http://www.gnuplot.info/ . However for strictly graphing mathematics I think David's suggestions are much better.
_________________
jrkrideau
Kingston ON Canada
Currently using Windows 7 & OOo 3.4.0 and Ubuntu 12.04 & LibreOffice 3.5.2.2
Rosanella
General User

Joined: 14 Dec 2007
Posts: 34
Location: London (UK)

Posted: Wed Aug 26, 2009 1:53 pm    Post subject: Re: Graphs of quadratic, cubic curves et all: can the be don

jrkrideau wrote:
 Rosanella wrote: I need to create some graphs charts of quadratic or cubic curves, given a formula , let's say y=ax^2+bx+c or that of a straight line , y=mx+c. Can they be done with Calc? Thank you

Not easily. If you need publication quality graphics you may want to check out R http://www.r-project.org/ or gnuplot http://www.gnuplot.info/ . However for strictly graphing mathematics I think David's suggestions are much better.

I need to create quadratic curves and curves examples as teaching aids for A level Maths.
Graph from www.padowan.dk is what I was looking for.
Thank you all for your suggestions. That was great!
_________________

Rosanella
If we do not try, we will not know. (Ayya Khema)
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