Spreadsheet failures, any recent examples? [Software]

posted by Ohlbe – France, 2020-12-10 18:43 (532 d 18:34 ago) – Posting: # 22125
Views: 5,882

Dear ElMaestro,

» does anyone have recent examples of spreadsheet functions truly misbehaving with real-life realistic data?

A colleague recently pointed to a strange behaviour in Excel (I have 2013, he has 2016, both give the same result here.

Type =0.5-0.4-0.1: you'll get the expected result, 0.

Now type =(0.5-0.4-0.1): you'll get -2,77556E-17. What ? Ain't that supposed to be the same calculation ?

Trying =0=0.5-0.4-0.1: the answer I got was FALSE. WTF, if the answer you get is 0 ? It's not a matter of number of decimals displayed: I tried to add more to the first result, or to switch to scientific notation, but still got 0.

Regards
Ohlbe

Complete thread:

UA Flag
Activity
 Admin contact
22,108 posts in 4,630 threads, 1,567 registered users;
online 3 (0 registered, 3 guests [including 1 identified bots]).
Forum time: Friday 14:17 CEST (Europe/Vienna)

We absolutely must leave room for doubt
or there is no progress and no learning.
There is no learning without having to pose a question.
And a question requires doubt.
People search for certainty.
But there is no certainty.    Richard Feynman

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