CODEWITHSUNDEEP
matlabscilab
William P Yeakel
William P Yeakel

Reputation: 1

function handle in MatLab translation to SciLab

We have some MatLab code that includes lines such as: 

fTE2D = @(x) (0.0049.*WP^2 + 2.4417.*WP).*((y^(2)+x^(2))^(1/2))^(-0.128.*log(WP) - 1.7855)-SecondD;

Which we would like to translate to SciLab. Cannot find reference to function handle (Matlab @) in SciLab.

Upvotes: 0

Views: 938

Answers (1)

user5694329
user5694329

Reputation: 412

This Matlab instruction creates an "anonymous" functionand stores it in the fTE2D variable

In Scilab all functions are variables you can create a similar function with 

    function y=fTE2D(x)
      y= (0.0049.*WP^2 + 2.4417.*WP).*((y^(2)+x^(2))^(1/2))^(-0.128.*log(WP) - 1.7855)-SecondD; ;
    endfunction

A significative difference however

In Matlab WP, y and SeconD has to be defined before the anonymous function is created and their values are stored in the fTE2D variable. With Scilab the WP, y and SeconD value are taken from the calling scope when the function is called.

example

With Matlab

>> a=2
>> foo=@() sqrt(a)
>> foo()
    ans =
   1.4142
>> a=4
>> foo()
    ans =
   1.4142

with Scilab

--> function y=foo(),y=sqrt(a);endfunction
--> a=2;
--> foo()
ans =
    1.4142
--> a=4;
--> foo()
 ans =
    2

Upvotes: 1

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