how to convert complex number into double number?
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Arshub
le 24 Jan 2022
Commenté : Walter Roberson
le 25 Jan 2022
I have got this complex value from result of an equation such :( 0.7803 + 0.0000i -0.3681 + 0.5659i 0.8562 + 0.0000i -0.8941 + 0.0428i 0.7861 + 0.0000i
0.0303 + 0.8492i 0.8508 + 0.0000i -0.5537 - 0.5875i 0.7910 + 0.0000i -0.7290 - 0.2247i)
i need to convert the result to double, How?
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David Hill
le 25 Jan 2022
We have no idea what you are trying to do. Some background would be helpful. You are obviously going to get complex results when cos(w) goes negative. You could force y to be positive by abs(cos(w)), but just like John said you cannot hide your head in the sand. We don't know what you are modeling or doing, so we can't help you.
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Walter Roberson
le 25 Jan 2022
siz=256;
x=nan(1,siz+1); %<------------PREALLOCATE!!!
y=nan(1,siz+1); %<------------PREALLOCATE!!!
Z=0.78;% initial value of control parameter Z for cofusion
E=0.95;% initial value of control parameter E for cofusion
%u=1.58;% initial value for cofusion
x(1)=0.75;% initial value
y(1)=0.2963 ; %u*x(1)*(1-x(1));%y(1) 0.2963 initial value
for j=1:siz
r=(Z/y(j));
x(j+1)= sin(r).^(3/2);
w=(E*acos(x(j)));
y(j+1)=(cos(w));
end
plot(x, y)
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