While syntax in matlab

Question

I am aware of the general syntax for the while loop in matlab, which general includes

While statement Do expression things End

But what does

while (1) 
...

mean?

Why is there a (1), and no relational Or logic operator?

1 is always true. The while loop never ends. It’s an infinite loop. — Cris Luengo
– Cris Luengo, Commented Feb 11, 2020 at 2:31
You need a break statement to terminate the execution of the while (1) loop — il_raffa
– il_raffa, Commented Feb 11, 2020 at 9:19

Cris Luengo · Accepted Answer · 2020-02-11 17:42:07Z

1

Every time you use structures like "while" or "if" they have a condition inside the parenthesis. If that condition is true, the code inside is executed. Something being true translates to the Boolean 1. Try this command in Matlab:

3>2

Matlab will tell you that this statement is a true with the Boolean answer '1'. If you put while(1), it is the same as putting while(3>2), both statements are always true, so the code inside is going to be executed an infinite amount of times (if there aren't any command inside that loop that might break it).

edited Feb 11, 2020 at 17:42

Cris Luengo

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answered Feb 11, 2020 at 16:45

Marta G.

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