I got scalar error continually. could you give advice

[jlee-2]

I don't know well wht I got error cotinually.

I am shy to post often.

[Werner_E]

jinsuk Lee wrote:

I don't know well wht I got error cotinually.

Which error?

The first error I see is because of a nonexistent Excel Sheet you try to read from.

You provided "nrel aero data.xlsx" but "\nrel_r,c,t.xlsx" is missing.

[jlee-2]

I forgot to attach.

thank you

And I got error here

I got massage about scalar error here

[Werner_E]

r.c is a vector but you compare that argument to a scalar in your function CL. This obviously can't work.

If you want the result for every element in r.c collected in a result vector, you have to use the vectorization operator over CL(.....).

[jlee-2]

So you mean that I need to work to use "vector"?

[Werner_E · Accepted solution]

You need to user vectorization! Thats a special Mathcad operator:

Excerpt from the help:

[jlee-2]

Okay I got it.

Good information for me. thank you!!