Floating point arithmetic, again [Software]

posted by ElMaestro  – Denmark, 2020-12-10 22:05 (36 d 09:11 ago) – Posting: # 22132
Views: 1,032

Hi Ohlbe,

> 0==(0.8-0.4-0.2-2*0.1)
[1] TRUE
> 0==(.1+0.8-0.4-0.2-3*0.1)
[1] FALSE


We (as in us humans) should just switch to binary and we'd never have these discussions. We can still keep the metric system but to keep things easy we may wish to define a millimeter as 1/1024 of a meter, if we wish to impress someone by our ability to do division and multiplication in our heads :-D


In a nutshell, try:
a=.11111111111111111111111111111111111111111111111111111111
b=.111111111111111111111111111111111111111111111111111111111
(a-b)==0



Edit: two posts merged [Ohlbe]

Pass or fail!
ElMaestro

Complete thread:

Activity
 Admin contact
21,303 posts in 4,441 threads, 1,488 registered users;
online 3 (0 registered, 3 guests [including 2 identified bots]).
Forum time: Saturday 07:16 CET (Europe/Vienna)

If you can’t solve a problem, then there is an easier problem
you can solve: find it.    George Pólya

The Bioequivalence and Bioavailability Forum is hosted by
BEBAC Ing. Helmut Schütz
HTML5