How to evaluate an equation with multiple points for a variable.

I have RE = V*D/NU and another equation C = 3.*RHOBAR/(4.*D) both variables RE and C appear in other equations, which will eventually end up in a plot. I want set multiple values for D. How do I solve this?

If I use D=[.1 .05 .001] I get an error stating Matrix Dimensions must agree

[KSSV]

What are V, D, RHOBAR? constants? I think NU is poisons ratio and RHOBAR is density. What is V?

[Thorsten]

Please post your code in text form, not as an image, such that we can run it.

Answer 1

[Thanigaivel Raja T]

Make sure you have placed dot before operators for vector variables in your reynolds number RE, C and in equation containing RE and C.

In general,

*  % matrix multiply
.* %scalar multiply
/  % matrix divide
./ % scalar divide
^  % exponentiation
.^ % element-by-element exponentiation