What does += or *= mean?

[dehu87]

Im new to turing and i saw a program that included += this symbol. My question is
what does += or *= mean?

[Dan]

saying somthing like

x += 1

is equlent to saying

x = x +1


The same goes for the * operation. Simpley put it means add (for +=) or times (for *=) the varible on the left by the stamnet on the right and store it back in the varible on the left.

[isaiahk9]

To be exact,

x += 1

is equivalent to saying

x := x + 1

[Sean]

That's identical to what Dan said.

[Mackie]

Not really. There is a colon that dan missed.

[Tony]

The colon was implied.

Generally speaking, = is the assignment operator, while == is the comparison for equality. So the difference is between pseudocode and Turing's syntax. Which in this case is negligible.

[Dan]

For more useless facts, saying x = x + 1 in turing is only a warning and will still run the code in most versions , tho yes i was going for pseudocode.