## 602 Reputation

17 years, 85 days
Phd.
Paris, France

## Same input, same computer --> different ...

Maple

Hi

The world has fallen over my head this morning when I discovered that the SAME maple input file, running on the same computer, had given different results. How can that  be possible???

Thanks.

S.

## Digits in vertical axes 2D plot...

Maple

Hi

In dealing with vertical range of 2D plots, the range goes from 10E-5 to 10E-3, in log-log mode, Maple choose to write 0. for the thickmarks below 0.001. I searched in the help without finding how to tell to Maple to eithere use exponential output for the axis ( 10^something) or the floating number form, but with more number after the comma (Digits is currently equal to ten).

## maple via ssh and connection timeout...

Maple

Hi

I must work with the textual version of Maple, via ssh. My program asks for a lot of time (10^5 seconds) , so that  I usally let it to run all the night. What happens is that when the calculation is done, the ssh server close the connection due to time inactivity, and I can't either use the results or continue my work there.

My questions are then:

1) Can I set Maple to keep the connection alive?

## MatrixInverse makes rough approximations...

Maple

Hi

I'm dealing with a symmetric matrix with numerical values, very high values, e.g. 10^(50), let's call it low_index

Maple computed the inverse with

up_index:= MatrixInverse(low_index);

## Performing numerical integration (quickl...

Maple

Hi,

I'm having problems with numerical integration in maple.

I've integrals of this kind

Int(6.989220000*10^12*f^(57/50)/(1.936774504*10^19+2.094942676*10^14*f^2-9.877129764*10^14*f^(107/50)+4.636748856*10^11*f^(207/50)-1.0261950*10^7*f^(307/50)+111.*f^(407/50)), f= 10...1000)

and Maple needs ages to give me a numerical answer (with value(%) ) . Am I doing something odd or it is a "normal" computing time?

I'm running maple in a 8GB RAM, 3Ghz quad core computer

Thanks

S.V.

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