feval

[ y1. yN ] = feval( fun , x1. xM ) evaluates a function using its name or its handle, and using the input arguments x1. xM .

The feval function follows the same scoping and precedence rules as calling a function handle directly. For more information, see Create Function Handle.

Examples

Evaluate Function with Function Name as Character Vector

Round the value of pi to the nearest integer using the name of the function.

fun = 'round'; x1 = pi; y = feval(fun,x1)

y = 3

Round the value of pi to two digits to the right of the decimal point.

x2 = 2; y = feval(fun,x1,x2)

y = 3.1400

Input Arguments

fun — Function to evaluate
function name | function handle

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. To specify fun as a function name, do not include path information.

Invoking feval with a function handle is equivalent to invoking the function handle directly.

Example: fun = 'cos'

Example: fun = @sin

x1. xM — Inputs to evaluated function
depends on function

Inputs to the evaluated function. The types of the inputs depend on the function, fun .