Remember the example from the video that showed how to return a function handle to a nested function that computed the value of a polynomial? Here it is:
function fh = get_polynomial_handle(p)
function polynomial = poly(x)
polynomial = 0;
for ii = 1:length(p)
polynomial = polynomial + p(ii) .* x.^(ii-1);
end
end
fh = @poly;
end
It takes a vector of coefficients p, defines a function that returns the value of the polynomial given the scalar input x, and returns a function handle to it. Here is an example run:
>> p = get_polynomial_handle(1:5)
p =
function_handle with value:
@get_polynomial_handle/poly
>> p(1)
ans =
15
Your task is simple: modify the code above so that it does not use any loops.
Here is the code, i tried;
function fh = get_polynomial_handle(p)
function fn = poly1(x)
ii = 1:length(p);
fn=poly(ii);
function polynomial = poly(ii)
if ii==1
polynomial= p(1);
else
polynomial = p(ii).*x.^(ii-1)+ poly(x,ii-1);
end
end
end
fh = @poly1;
end
Commond window error.
>> p = get_polynomial_handle([1:5])
p =
function_handle with value:
@get_polynomial_handle/poly1
>> p(1)
Error using get_polynomial_handle/poly1/poly
Too many input arguments.
Error in get_polynomial_handle/poly1/poly (line 9)
polynomial = p(ii).*x.^(ii-1)+ poly(x,ii-1);
Error in get_polynomial_handle/poly1 (line 4)
fn=poly(ii);
I can not able to figure out, what is wrong in this code. Please help!
