HP67 internal function timings  Printable Version + HP Forums (https://archived.hpcalc.org/museumforum) + Forum: HP Museum Forums (https://archived.hpcalc.org/museumforum/forum1.html) + Forum: Old HP Forum Archives (https://archived.hpcalc.org/museumforum/forum2.html) + Thread: HP67 internal function timings (/thread238881.html) 
HP67 internal function timings  Dieter  02102013 I admit I am amazed at the speed of the 34s Matrix functions  even a 10x10 random matrix is inverted in fractions of a second (approx. 0,7×n^{3} ms on my hardware). That's roughly as fast as some transcendental functions on earlier HPs like the 67/97. I remember a table with the execution times of most 67/97 functions, given in milliseconds, somewhere in a HP related magazine or journal. I am sure I must have stored it somewhere on some harddrive, but I cannot seem to find it. Maybe someone can help and tell me where to find this info?!
Dieter
Re: HP67 internal function timings  Jake Schwartz  02102013
Quote: Hi, One of these appeared in PPC's "Better Programming On The HP67/97" publication, which was sent to members roughly in June of 1978, around the time of Volume 5, Number 5 of the PPC Journal. The table appears in pages 2729.
Jake
Re: HP67 internal function timings  Paul Dale  02102013 Quote: The surprising thing is I'm not using a particularly efficient algorithm for matrix inversion. A Doolittle LU decomposition with partial pivoting followed by solving lots of equations.
Re: HP67 internal function timings  Dieter  02112013 Ah, thank you  now I know what to look for. I think I have a PDF of this. It must be somewhere deep down in some subsubsubfolder... :)
Dieter
