Creating a function that outputs a polynomial

Please write a MATLAB function with the following: (1) output a third-order polynomial function with the coefficients as the input variables; (2) Convert this function to function handle.

[Stephan]

sounds like a homework. Please show the code you have tried so far. where exactly do you get stuck?

[Mitchell]

poly3=@(x) -x.^3-2*x+exp(-x)

[Mitchell]

I'm honestly just confused on what it's asking and how to create that function.

Answer 1

[Kevin Phung]

tip: When you create a new function on matlab (right click directory>new file > function), it looks something like this:

function [outputArg1,outputArg2] = func_name(inputArg1,inputArg2)
%UNTITLED Summary of this function goes here
%   Detailed explanation goes here
outputArg1 = inputArg1;
outputArg2 = inputArg2;
end

defining a function this way is useful because you can call a result it with these inputs:

func_name(1,2)

note: you should save the name of the file to be the same as the name of your function.

so in this case, this file will be saved as func_name.m

[madhan ravi]

[out1,out2]=func_name(1,2)