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roman_pearce

Mr. Roman Pearce

1678 Reputation

19 Badges

20 years, 218 days
CECM/SFU
Research Associate
Abbotsford, British Columbia, Canada
Contact Roman Pearce

I am a research associate at Simon Fraser University and a member of the Computer Algebra Group at the CECM.

MaplePrimes Activity


These are replies submitted by roman_pearce

rtable scanblock is dense...

roman_pearce 1678
March 29 2006
0 0
rtable_scanblock won't work well on sparse matrices. Try this (props to Joe Riel): maxindex := proc(A::Matrix) local i; op(attributes(max(seq(setattribute(Float(abs(rhs(i)),0), [lhs(i)]),i=op(2,A))))) end proc:

rtable scanblock is dense...

roman_pearce 1678
March 29 2006
rtable_scanblock won't work well on sparse matrices. Try this (props to Joe Riel): maxindex := proc(A::Matrix) local i; op(attributes(max(seq(setattribute(Float(abs(rhs(i)),0), [lhs(i)]),i=op(2,A))))) end proc:

I am currently away on a...

roman_pearce 1678
March 28 2006
I am currently away on a trip but when I get home this weekend I'll take a look at my Gentoo system and try to help you guys out.

You guys did a good job on this...

roman_pearce 1678
March 28 2006
I've been testing the release candidate of this patch and it's very good. Congratulations are in order for the people who worked on this, even if it is only a point revision.

Not all equations can be...

roman_pearce 1678
March 22 2006
0 0
Not all equations can be solved symbolically, for example x=cos(x). If you want a numerical solution you can use the fsolve command, ie: fsolve(equation);

Not all equations can be...

roman_pearce 1678
March 22 2006
Not all equations can be solved symbolically, for example x=cos(x). If you want a numerical solution you can use the fsolve command, ie: fsolve(equation);

Sorry I'm on a trip so I...

roman_pearce 1678
March 22 2006
Sorry I'm on a trip so I have no idea what version of glibc I'm using. It is whatever version was current in January of this year. I was also using Maple 10 - I've never tried Maple 9.5 with NPTL. This is basically a bug (although it is technically unsupported). Can anyone in the company comment on this thread ?

Benford's Law...

roman_pearce 1678
March 14 2006
For anyone who is wondering why 0 and 1 appear so frequently: Benford's law

KnotPlot...

roman_pearce 1678
March 09 2006
For those interested in playing with knots on a computer, I highly recommend KnotPlot.

This is awesome...

roman_pearce 1678
March 07 2006
This is excellent, and I can't wait to try it out :)

If you can compute the...

roman_pearce 1678
March 06 2006
0 0
If you can compute the number of v's (when coeffs is called) then do C := [coeffs(g, {seq(v[i], i=1..n)}, 'M')]; where n is the number of v[i]'s.

If you can compute the...

roman_pearce 1678
March 06 2006
If you can compute the number of v's (when coeffs is called) then do C := [coeffs(g, {seq(v[i], i=1..n)}, 'M')]; where n is the number of v[i]'s.

strongly seconded...

roman_pearce 1678
March 02 2006
This is a great suggestion

Algebra...

roman_pearce 1678
February 24 2006
0 0
In algebra, certainly. Maple has a lot of quirky packages which do interesting things. Many of them come out of advanced research projects. Maple is also very strong for differential equations.

Algebra...

roman_pearce 1678
February 24 2006
In algebra, certainly. Maple has a lot of quirky packages which do interesting things. Many of them come out of advanced research projects. Maple is also very strong for differential equations.
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