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How do i make the samples in a plot logaritmic?

Posted on 2008-06-13 05:23 By yousif (2)
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Hi all. I m using maple 11. I plot a figure with loglogplot the problem is that the number of points at the low part of the x axis is very low. I increase the number of points but because it is a logaritmic plot the step is still too large for the low numbers but too small for the high numbers. Any ideas how to solve this? Thank you in advance.

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Samples in logarithmic plot

Comment on 2008-06-13 13:20 from pchin (Maple Rating 2 164)

This problem has been fixed in Maple 12. However, for earlier versions of Maple, you can use the 'sample' option to specify the sample points.  The loglogplot command will then use your sample points instead of calculating them on its own. Add the adaptive=false option when you use the sample option. You can get information about these options from the plot/options help page.

Paulina Chin
Maplesoft

Robert Israel's picture

loglogplot

Comment on 2008-06-13 13:33 from Robert Israel (Maple Rating 4 1555)

This seems to be a bug in Maple 11 Standard, not present in Classic.  Don't bother submitting a bug report, though, because it has been fixed in Maple 12.  The Classic version of loglogplot is still available in Standard, as `plots/loglogplot`.  So, e.g.:

> `plots/loglogplot`(exp(ln(x)^2),x=1..100);

 

Thank you

Comment on 2008-06-14 09:30 from yousif (2)

Thank you very much for your answers.
Yousif

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