# What is a feval method?

## What is a feval method?

Feval function is used to evaluate the function output of a function by using the arguments passed inside a single parenthesis input. It accepts the function name passed as a “string”, as its first argument.

### What is MATLAB feval?

Function to evaluate, specified as a function name or a handle to a function. The function accepts M input arguments, and returns N output arguments. Invoking feval with a function handle is equivalent to invoking the function handle directly.

**How do you inline in MATLAB?**

f = inline( expr , arg1,arg2,…,argN ) constructs an inline function whose input arguments are specified by arg1,arg2,…,argN . Multicharacter symbol names may be used. f = inline( expr , N ) , where N is a scalar, constructs an inline function whose input arguments are x and P1,P2,…,PN .

**How do you evaluate a function handle?**

To create a function handle, use the @ operator. For example, create a handle to an anonymous function that evaluates the expression x2 – y2: f = @(x,y) (x. ^2 – y….Functions.

function_handle | Handle to function |
---|---|

feval | Evaluate function |

func2str | Construct character vector from function handle |

## What is octave feval?

The feval function allows you to call a function from a string containing its name. This is useful when writing a function that needs to call user-supplied functions. The feval function takes the name of the function to call as its first argument, and the remaining arguments are given to the function.

### What is feval command in Scilab?

z=feval(x,y,f) returns the matrix z such as z(i,j)=f(x(i),y(j)) f is an external (function or routine) accepting on one or two arguments which are supposed to be real. The result returned by f can be real or complex.

**What is an inline command?**

The inline command lets you create a function of any number of variables by giving a string containing the function followed by a series of strings denoting the order of the input variables.

**What can I use instead of inline in MATLAB?**

Firstly, Matlab help files say that ‘inline’ function will be removed in future revisions. So, you better stick with the anonymous functions.

## How do you call an Octave script?

To run your Octave file in GNU Octave.

- navigate to editor tab at the bottom of command editor.
- Press Ctrl+O or Go to file and open your file.
- Pres F5 or Navigate to Run and Save and Run.

### What is surf in Scilab?

Description. surf draws a colored parametric surface using a grid whose nodes coordinates are defined by X and Y . At each node of this grid, a Z coordinate is given using the Z matrix. surf has been created to better handle Matlab syntax.

**How do you write a loop in Scilab?**

According to the Code Conventions for the Scilab Programming Language it is recommended:

- Start each statement on a new line.
- Write no more than one simple statement per line.
- Break compound statements over multiple lines.