Author: David Rees
Posted: Thu, 9 May 2002 10:26:06 +0100
>> From: "David Rees" />
Using Maple V, Release 4.
Is there a method in the GF package, or in the GF mode in Domains, which
gives the discrete logarithm of a value?
Currently I do this by constructing a table of powers of a primitive
root, and then inverting the table to get the logarithms. But these
tables rapidly outgrow Maple's capacity ("Object too large"), and I do
not see a method of giving Maple more memory.
Strictly speaking, all I need to know is whether the logarithm is odd or
even, but a general answer would also be useful.
"Without the Maple software, we would have to spend weeks generating the equations of motion for every experiment. Then the chances that we did it right would basically be near zero. There would always be a mistake somewhere. It is very difficult to set up a dynamic motion model by hand." - Jean-Claude PiedBeouf, Ph.D Manager of Robotics, Canadian Space Agency
"Its very good - highly accurate and easy to use. The speed of Maple allows me to change equations and quickly reintegrate them into the application, so more possibilities can be explored to achieve the precise effect desired." Shawn Neely, Senior R & D Director for PDI/Dreamworks