I am having this error, could you help?

a=[1.6];
b=[0];
x(1)=1.28; x(2)=1.36; x(3)=2.47; x(4)=3.68; x(5)=4.56;
for i=1:5
    y(i)=a.^(x.^2-1)-log(x.^2-1)+(x.^2).^(1/3);
end
y

Answer 1

[Arif Hoq]

try this:

a=1.6;
b=0;
% x(1)=1.28; 
% x(2)=1.36; 
% x(3)=2.47; 
% x(4)=3.68; 
% x(5)=4.56;
x=[1.28;1.36;2.47;3.68;4.56];
for i=1:size(x,1)
    y(i)=a^(x(i)^2-1)-log(x(i)^2-1)+(x(i)^2).^(1/3);
end
y

y = 1×5

1.0e+04 * 0.0003 0.0003 0.0011 0.0363 1.0971

[Askic V]

Even better, use

for iii=1:numel(x)

This way if you add more/remove elements in vector x, you won't have to change te limit in the for loop.

Answer 2

[Voss]

a=1.6;
b=0;
x=[1.28 1.36 2.47 3.68 4.56];
y=a.^(x.^2-1)-log(x.^2-1)+(x.^2).^(1/3);
y

y = 1×5

1.0e+04 * 0.0003 0.0003 0.0011 0.0363 1.0971