Re: Intersection between a function and a tangent

Thank you for your answer.
I dont understand why it works for you and not for me. I dont get at answer at 
all.
x=0.9986 and f(x)=-0.0064 as the point of intersection is not a good 
approximation .
I can get these numbers when I use "function" but not "intersection".

Ib

-------------------------------------------------------------------------
Take Surveys. Earn Cash. Influence the Future of IT
Join SourceForge.net's Techsay panel and you'll get the chance to share your
opinions on IT & business topics through brief surveys -- and earn cash
http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV

Re: Intersection between a function and a tangent

Ib wrote:
> Thank you for the answer. The calc-evaluate-intersection doesn't work when one 
> graph is tangent to the other graph?
> Perhaps there is no "sign change"?

Yes, Graph actually looks for places where the two functions cross. I am 
not sure how Matthew made it work, but a rounding error might have 
caused Graph to think that they crossed. I plan to look into improving 
the algorithm in Graph 4.3.

A thing you can do now is to create a new function by subtracting the 
two you want to find the intersection between:
f(x)=x^2-1 - (2x-2)

The zero points of this function indicates where the original functions 
intersect, and this is what Graph is having trouble with. An extremum at 
the zero point indicates that one of the functions is a tangent to the 
other, and Graph is able to find this extremum at x=1. You can evaluate 
one of the original functions to find the y-coordinate.

Best regards
Ivan Johansen

-------------------------------------------------------------------------
Take Surveys. Earn Cash. Influence the Future of IT
Join SourceForge.net's Techsay panel and you'll get the chance to share your
opinions on IT & business topics through brief surveys -- and earn cash
http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV

legend scaling

What would be awesome is if you could have the option the scale the legend box,
becasue when I paste my graph into a document, I usually scale the whole thing
down a bit, but then the legend becomes uninteligiable. What I have to do is
PrtSc and paste in an image editing software to then copy outh just the legend
and then past that on top of the graph in my document, this is a very ardous
process and I would appreciate it greatly if you guys took it upon yourself to
make it possible to scale legends with your otherwise very excellent software!

thanks a lot

-------------------------------------------------------------------------
Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job easier
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642

Re: legend scaling

Jens Christian Nordvi wrote:
> What would be awesome is if you could have the option the scale the legend box,
> becasue when I paste my graph into a document, I usually scale the whole thing
> down a bit, but then the legend becomes uninteligiable. 

If you change the legend font in the Edit|Axes dialog under the "Font 
and color" tab, the legend will scale to fit the font. Isn't that good 
enough?

Of course it would be easier if you could just resize the legend by 
dragging with the mouse. I will look into implementing this.

Best regards
Ivan Johansen

-------------------------------------------------------------------------
Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job easier
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642

Re: legend scaling

Ivan Johansen <graph <at> padowan.dk> writes:

> 
> If you change the legend font in the Edit|Axes dialog under the "Font 
> and color" tab, the legend will scale to fit the font. Isn't that good 
> enough?
> 
> Of course it would be easier if you could just resize the legend by 
> dragging with the mouse. I will look into implementing this.
> 
> Best regards
> Ivan Johansen

Dude, I just realised that you are right, I can resize the legend. But in that
moment of utter relief I also discovered more of a slight inconvenience - the
fact that if you chose the copy image function the grid goes over
the legend when the image is pasted. This is not a large problem but I do, in my
opinion (I am a perfectionist (that is why I am using a computer program instead
of doing it by hand, I can't even draw a straight line but with this program the
graphs become so appealing)) believe that it is a larger problem than having to
do a couple of extra
clicks to resize the legend.

Thanks again for a great program!

-------------------------------------------------------------------------
Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job easier
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642

Re: legend scaling

Jens Christian Nordvi wrote:
> Dude, I just realised that you are right, I can resize the legend. But in that
> moment of utter relief I also discovered more of a slight inconvenience - the
> fact that if you chose the copy image function the grid goes over
> the legend when the image is pasted. 

That sounds strange. The grid lines should be excluded from drawing over 
the legend. Which program do you paste into? I know that Open Office has 
some trouble handling metafiles. Among other things it draws the grid 
lines over the legend. But it seems to work with all other programs.

Best regards
Ivan Johansen

-------------------------------------------------------------------------
Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job easier
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642

Re: legend scaling

Ivan Johansen <graph <at> padowan.dk> writes:

> That sounds strange. The grid lines should be excluded from drawing over 
> the legend. Which program do you paste into? I know that Open Office has 
> some trouble handling metafiles. Among other things it draws the grid 
> lines over the legend. But it seems to work with all other programs.
> 
> Best regards
> Ivan Johansen

I am indeed using Open Office, so is this an Open Office problem then? A problem
that they should fix?

-------------------------------------------------------------------------
Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job easier
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642

Re: legend scaling

Jens Christian Nordvi wrote:
> I am indeed using Open Office, so is this an Open Office problem then? A problem
> that they should fix?

Yes, I think that there are some features of metafiles that Open Office 
doesn't support, because it works with all other programs.

Best regards
Ivan Johansen

-------------------------------------------------------------------------
Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job easier
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642

Question

-------------------------------------------------------------------------
Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job easier
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642

_______________________________________________
Graph-support mailing list
Graph-support <at> lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/graph-support

Re: Question

Chae' Crider wrote:
> How do you make the legend on the graohs larger??

In the Edit|Axes dialog under the Font and Color tab you can change the 
Legend font. If you increase the font size, the legend will be larger.

Best regards
Ivan Johansen

-------------------------------------------------------------------------
Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job easier
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642