Floating point arithmetic, again [Software]

posted by ElMaestro  – Denmark, 2020-12-10 22:05 (656 d 00:34 ago) – Posting: # 22132
Views: 6,480

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
22,391 posts in 4,685 threads, 1,595 registered users;
online 3 (0 registered, 3 guests [including 3 identified bots]).
Forum time: Tuesday 23:39 CEST (Europe/Vienna)

Statistics. A sort of elementary form of mathematics which consists of
adding things together and occasionally squaring them.    Stephen Senn

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