Question

what is the meaning of this symbol
:=

Answer 1

equal

Answer 2

not it is not

Answer 3

:= it has : in the begining

Answer 4

@KingGeorge can you please tell me what is it?

Answer 5

It's a definition symbol. So if I say:

"\(y:= (5x^2-3)^3\)

I'm defining \(y\) to be that expressions.

Answer 6

sorry I didn't get it :(

Answer 7

Let me think up a better example. All it is though, is a definition.

y:=x

means that you define y to be x.

Answer 8

\[\cosh(x):=\frac{e^x+e^{-x}}{2}\]\[e:=\text{The base of the natural logarithm}\]

Answer 9

Oops. Correction on the last one \[e:=\lim_{n\to\infty}(1+\frac{1}{n})^n\]

Answer 10

\[\pi:=\frac{\text{Circumference}}{\text{Diameter}}\]

Answer 11

Did this help you understand?

Answer 12

yes thanks a tonne @KingGeorge

Answer 13

You're welcome.