HP 15C and INT(1/√(1-x),0,1)

[Dieter]

(01-12-2018 07:10 PM)Mike (Stgt) Wrote:  

(01-12-2018 10:37 AM)Dieter Wrote:  The 41C is much faster than the 15C so I'd expect significantly shorter execution times.

Really? Almost same CPU, functionally identical, but running much faster if boxed in an HP41? That's new to me.

Take a look at Carsen's result:

(11-27-2017 01:33 AM)Carsen Wrote:  I set the HP-15C to a fix of 2 and integrated the integral from 0 to 1. In a time of 2 minutes and 42 seconds, I got the answer of 1.99.

As noted, the 41C Advantage ROM's INTEG does it in 1:34 minutes. As opposed to 2:42 on the 15C.

Also take a look at the 8-queens benchmark:

HP-15C: 1:19'10"
HP-41C: 0:17'35"

So I think it is obvious that the 15C is significantly slower than the 41C. However, how much slower seems to depend on various factors.

Dieter