2019-09-01|Sunatori's Discipline (Mandatory Parentheses)

Potential Discovery or Invention

The following crazy confusion can be avoided by mandating the use of parentheses.
PEMDAS (parenthesis, exponents, multiplication, division, addition, subtraction).
- 6 - 1 * 0 + 2 / 2
  = 6 - ((1 * 0) + (2 / 2))
  = 6 - (0 + 1)
  = 6 - 1
  = 5
- 8 / 2 * (2 + 2)
  = 8 / (2 * (2 + 2))
  = 8 / (2 * 4)
  = 8 / 8
  = 1
- ...
BEDMAS (multiplication, division, exponents, brackets, subtraction, addition)
- 6 - 1 * 0 + 2 / 2
  = (6 - (1 * 0)) + (2 / 2)
  = (6 - 0) + 1
  = 6 + 1
  = 7
- 8 / 2 * (2 + 2)
  = (8 / 2) * (2 + 2)
  = 4 * 4
  = 16
- ...

I wonder how many scientific papers, technical reports and engineering reports have been published inadvertently using such tainted computational algorithm...

Ansys?
COMSOL?
Maplesoft Maple?
MathWorks MATLAB?
PTC Mathcad?
Wolfram Mathematica?
...

Rolls-Royce's Mathematical Modelling & Simulation

Talented engineers are using Excel and getting serious errors of which they are simply not aware. And errors build up more rapidly than you might expect.

Rolls-Royce's Mathematical Modelling & Simulation
Talented engineers are using Excel and getting serious errors of which they are simply not aware. And errors build up more rapidly than you might expect.

PTC Mathcad

Software packages are extremely complex with so many options and "buttons" that errors are easy to make and hard to debug.

PTC Mathcad
Software packages are extremely complex with so many options and "buttons" that errors are easy to make and hard to debug.

Go to home page/Aller à la page d'accueil

Go to Weblog/Aller au Weblog

English / Français

Comments/Commentaire

"Sunatori, Go Simon" <GS.Sunatori@HyperInfo.CA>

[Donation/Don, SVP]

Produced in Canada./Produit au Canada.

ISBN 978-0-929105-04-8

2024-12-17T20:45:24.000Z