Floating point arithmetic, again [Software]

posted by ElMaestro  – Denmark, 2020-12-10 22:05 (528 d 19:37 ago) – Posting: # 22132
Views: 5,829

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:

UA Flag
Activity
 Admin contact
22,092 posts in 4,630 threads, 1,567 registered users;
online 29 (1 registered, 28 guests [including 26 identified bots]).
Forum time: Monday 18:43 CEST (Europe/Vienna)

There is no adequate defense, except stupidity,
against the impact of a new idea.    Percy Williams Bridgman

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