Ilya Zakharevich on Wed, 30 Jun 1999 16:26:51 -0400 |
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Re: Recursive plot |
On Tue, Jun 29, 1999 at 02:59:29PM +0200, Karim BELABAS wrote: > > ? ploth(x=-20,20,sin(x),2) > > > > [ nice picture, completely wrong in the center ] > > Possible solution: instead of checking consecuitive pairs of intervals > > (1st and 2nd, then 3rd and 4th, then 5th and 6th, etc), check all the > > adjacent pairs of intervals (1st and 2nd, then 2nd and 3rd, then 3rd > > and 4th, etc). > > Other solution: > > ploth(x=-20,21,sin(x),2) Sorry, I consider this as a complete <insert your favorite expletive>. If a user can do it, why will not PARI do the same? If a solution is possible (*and* cheap, *and* very reliable [X]) in program-land, any movement of the solution to the user-land is just putting dust under the carpet. Ilya [X] To beat my solution, you need 14 coincidences - as opposed to 1 with the current scheme. Well, I forgot one additional safeguard: the sizes of two consequent intervals should not differ more than 2x.