Art Kalb

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13 years, 318 days

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These are questions asked by Art Kalb



I am trying to create a semilogplot-type plot with the axis tickmarks labeled as a typeset version of "10^0","10^-1","10^-2", etc.

I have tried a few different approaches. If I used semilogplot, I don't seem to be able to get the descending order of exponents (0,-1,-2, etc.) as I go right on the x-axis. They are also not typeset.

I can get around the descending order rather easily by just using plot and doing some remapping of my functions....

I am trying to figure out how to factor expressions like:


Simply trying factor does not work.

factor(1+2*exp(x)+exp(2*x)) => 1+2*exp(x)+exp(2*x)

Of course, I can force a substitution and make it work:

factor(subs(exp(2*x)=exp(x)^2,1+2*exp(x)+exp(2*x))) => (exp(x)+1)^2

In general however, I would like to not have to specify a substitution or even what is in the exponent!

Any help would be appreciated.


I am wondering if there is a way to get rid of the extra space around the gridlines, especially in "axes=boxed" mode.

For example, if y=0 is my lowest tickmark, the plot box extends slightly below the y=0 gridline. I would like the plot box to fall exactly on the y=0 gridline (like Matlab would do it).

Anyone know a solution to this?




I am trying to size a postscript plot in Maple 12.

I don't seem to have any control over the plot size with the width, height, axiswidth, axisheight options.

Is there something I should be doing to get control?


Additionally, is there a way to tie these values into the plot export facility?






I was wondering if anyone knows how to do a summation over all positive integers up to N (where N is a parameter) excluding a finite subset of values.


For instance, how would I sum from 1 to N excluding 2,4,5?





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