nargin

Returns the number of input arguments.

📝 Syntax

• R = nargin()

• R = nargin(function_name)

• R = nargin(function_handle)

📥 Input argument

• function_name - a string: function name

• function_handle - a function handle

📤 Output argument

• R - an integer value: number of input argument

📄 Description

nargin returns the number of input arguments of an function.

If the last input argument of the function is varargin the returned value is negative.

💡 Examples

With an macro function:

nargin('getfield')

With an builtin function:

nargin('cos')

🔗 See also

nargout.

🕔 History

Version	📄 Description
1.0.0	initial version