Undefined function 'Input' for input arguments of type 'char'?

(fxn)

function y=invest1(n)
global A P I
y = A - P*(1+I)^n;
end

(Script)

global  P A I
P = Input(' Enter initial investment');
A = Input(' Enter target value for the investment');
I = Input(' Enter interest rate');

EDU>> Invest_1
Undefined function 'Input' for input arguments of type 'char'.

Error in Invest_1 (line 2)
P = Input(' Enter initial investment');

Answer 1

[Star Strider]

MATLAB is case-sensitive. Use input (lower-case ‘i’) instead.