Im trying to code the following equation (Attached) in MATLAB, could someone please tell me if i coded it right. Thanks

eqn=Ma.*sqrt(gam.*R.*Ta).*((1+f).*sqrt(T04./Ta).*(1+((gam-1)./2).*Ma.^2).^(-0.5))-1

Answer 1

[OCDER]

eqn= Ma.*sqrt(gam.*R.*Ta).*((1+f).*sqrt(T04./Ta).*(1+((gam-1)./2).*Ma.^2).^(-0.5))-1
                                                                                 ^ WRONG PLACE

Note: You do not need the dot-multiplier (.*) when multiply a scalar value to a matrix. Use the elementy-wise, dot-multiplier when multiplying two matrices together, element-by-element.

EX:

A = 1;
B = 2;
C = A * B; %OK

A = 1; 
B = [1 2 3];
C = A * B; %OK

A = [1 2 3];
B = [1 2 3];
C = A .* B; %OK to use .* multiplier if you want C = [1 4 9].

[Faraz Vossoughian]

Besides that, practises are fine?

[OCDER]

Scroll through equation: there is a parenthesis that doesn't agree with your equation.

 ...(-0.5))-1 
          ^ WRONG PLACE

Other than that, I don't see anything else wrong.

[Faraz Vossoughian]

should it be after -1 ?

[OCDER]

Believe in yourself Faraz! YOU need to be able to decide what's right or wrong yourself. The different levels of confidence...

"should it be after -1?" (lacking confidence because of fear of failing)

"it should be after -1 because the brackets surround -1" (justified confidence, failed and learned many times)

"it should be after -1 because I'm always right" (over confidence, failed a lot but never learned)

"it should be after -1 because others said so. " (false confidence, majority can be incorrect too)

But, are you even sure the bracket should be after -1? Just testing :)