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17 years, 315 days

MaplePrimes Activity

These are Posts that have been published by Mariner

The search engine for Maple 10's help pages could be greatly improved if it used fuzzy techniques. At present, unless the query is spelled correctly, the answer is No Matches Found. Perhaps Google could be persuaded to provide an engine... but without ads please! J. Tarr
I came across this news item: A chip with 80 processing cores and capable of more than a trillion calculations per second (teraflop) has been unveiled by Intel.
There was a discussion on comp.soft-sys.maths.maple about how well Maple obtains the Jordan Normal Form of a (square) matrix. LinearAlgebra[JordanForm] is limited to matrices of integers, so it can make severe demands on computer memory; furthermore, in practice, one is often confronted with floating point data. However, linalg[jordan] operates on matrices of both integer and floating point data.
The following equation cannot be plotted correctly in the usual 3 dimensional plot with Cartesian coordinates. eq := (x^2+y^2+z^2-1)^3 - x^2*z*3 - y^2*z^3 = 0; Either a 3 dimensional implicit plot, or a spherical coordinates plot is needed. What surprised me was how long Maple 10.06 took to produce the latter with very roughly the same amount of detail as the former: 454 s versus 0.7 s. It seems as though one should always prefer the implicit plot to the spherical plot if the 3 dimensional Cartesian plot fails. I would be grateful for any thoughts about this and any improvements to the code below. (Apologies for not posting the worksheet – I think that File Manager might object to its 10MB size!)
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