thank you for help

I have

function fps = ktsTOfps(kts)
%fps converts speed given in units of knots to speed in units of feet per
%second

% input variable: kts
% output variable: fps

% calling sequence: fps = ktsTOfps(kts)

% calculating fps
  fps=kts*1.687809857;

kts=400;
fps = ktsTOfps(kts)

I keep getting the error "Index exceeds matrix dimensions." I don't really understand why this is popping up or where I need to go from here?

[Star Strider]

One knot is 1.150779448023543 U.S. statute miles, or 6076.115485564304 U.S. feet, or more properly, 1.852 kilometers.

[Rena Berman]

(Answers Dev) Restored question.

Answer 1

[Geoff Hayes]

Victoria - the error message is telling you that you are trying to access an element in an array (or matrix) using an index that exceeds the size of the array. As your function ktsTOfps doesn't do any indexing into an array, I wonder if the problem is when you call the function at

 fps = ktsTOfps(its)

Could it be that you have created a local variable with the same name as ktsTOfps? In the Command Window type

 which -all ktsTOfps

What do you see? You may observe something similar to

 ktsTOfps is a variable.
 /Users/geoffhayes/Documents/MATLAB/ktsTOfps.m  % Shadowed

which would indicate that you do have a local variable (in the base workspace) that needs to be deleted.

[Victoria Billips]

It was the last thing you stated. I finally noticed about 29 minutes after posting the question on here. I cleared my workspace and it worked perfectly. Thank you though!