Thanks.

Me, not being able to use your programs settings!

Actually there are 2 Real roots (2 & 3) and 2 Irrational roots (1.8189364... & 3.61800635...)

If there's any way I can help please let me know (but remember I'm 83 and slowing down!)

Regards

Pete]]>

Hi. I am using the Beta version 4.5, build 584. When I input x(t)=re(3-2i) and y(t)=im(3-2i) as a parametric function nothing appears on the graph. I would have expected to see some sort of marker at x = 3 and y = -2. Is this a problem at your end or am I doing something wrong?

chris

]]>I actually need someone to find bugs in Graph. Otherwise they don't get fixed. And you do provide some interesting test cases.

]]>If you've time & patience would you check this equation out for me please.

It's a X^4... equation which can only give 4, 2 or 0 roots.

On the Graph it gives 3 !!

The equation is : x^4 - 9.9999x^3 + 35.9992x^2 - 54.9979x + 29.9982

I'm NOT deliberately looking for problems in your program - honest!!!

Regards

Pete

I'd like to be able to have x and y axis numbering as "1/2", or "2/3", etc.. Is it possible to do this? If not, is it possible to set a number of decimal places to x and y numbering such as having "1/3" be shown as "0.33". Either way could you consider these for the next version of Graph?

Thanks

chris

]]>I recently ran my program (Find factors) with

x^4 - 10x^3 + 36x^2 - 55x + 31

and it came up with Q"No solutions" (Real or irrational)

so naturally I went to Graph.

Initially it seemed to concur but (very briefly) I saw a very narrow "spike"

but I was not able to capture it again.

It was asymptotic, and almost vertical.

Would you be so kind and see if you can find it ?

It appeared to be around x = 1.01652...

A close equation with the constant as 30 gives :

(x - 2)(x - 3)

2 approximate (irrational?) roots

x1 = +1.381966011250 f(x1) = +0.000000000000239808173319034

x2 = +1.381966011251 f(x2) = -0.00000000000200017780116468

x1 = +3.618033988749 f(x1) = -0.00000000000200017780116468

x2 = +3.618033988750 f(x2) = +0.00000000000019984014443252

Regards

Pete

https://www.padowan.dk/doc/english/EvaluateDialog.html]]>

Managed to get back - at last!

You mention Snap-to but I cant find it anywhere...

Pete]]>

I downloaded python 3.2 as you suggested and everything worked fine. The "plugins" option became available on the menu and all plugins worked fine. Now I have donwloaded the latest verison of Graph (which you say has python 3.7 bundle in with it) and the "plugins" option is no longer on the menu. Do you know what might be going on?

chris

]]>I have a data set where x corresponds to the time coordinate and y is the corresponding intensity

so that I have a plot as function of the arrival time.

But the time of arrival t can be transformed in mass m as

m= ((t-t0)/A)^2

Knowing the constants t0 and A (which I can determine after calibration), I can get y as function of m

What I would like to do is to have the in the same graph the intensities plotted vs time (linear scale let say in the bottom x axis) and vs mass (quadratic scale let say in the top x axis).

Thank you for your kind attention

Renzo]]>