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Array indices must be positive integers or logical values.

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dylan stephens
dylan stephens on 26 Feb 2021
Commented: KSSV on 26 Feb 2021
function [z]=phi(x)
%Determine phi(x) using the formulas provided
%2/25/21
%AE 227
a=0.4361836;
b=0.1201676;
c=0.937298;
r=exp(-.5*(x^2))/sqrt(2*pi);
t=1/(1+(0.3326*x));
z=0.5-r(a*t-b(t^2)+c(t^3));
end

Answers (1)

KSSV
KSSV on 26 Feb 2021
Edited: KSSV on 26 Feb 2021
function [z]=phi(x)
%Determine phi(x) using the formulas provided
%2/25/21
%AE 227
a=0.4361836;
b=0.1201676;
c=0.937298;
r=exp(-.5*(x.^2))/sqrt(2*pi);
t=1./(1+(0.3326*x));
z=0.5-r.*(a*t-b*(t.^2)+c*(t.^3)); % <--- change in this line
end
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