MATLAB: Precedence of operators – which is correct

Question

I am a beginner and would appreciate your help with this.

I need to code

Which of these 2 MATLAB codes would give me the correct answer?

1) a=24.4*10^-9

2) a=24.4*(10^-9)

I think the operators * and ^ fall under different precedence levels, so I am confused as to which operator would be applied first if I used the 1st line of code.

Thanks

Answer 1

The raising to a power happens first. The multiplication happens second.

The two equations should give the same value - try it.

It is NOT a=(24.4*10) ^ (-9)

You could also do

a=24.4e-9

and get the same number. The 10^ can be replaced by E or e.