I have calculated two one diensonal matrices (i.e. two arrays) using two different equations. I am trying to check if corresponding values of both the arrays are equal or not. Following are the two methods that I followed to generate two arrays, namely y1 and y2,
Method: 1
R = 2.5;
x = (0:0.005:1);
y1 = R*x.*(1-x);
Method: 2
x = (0:0.005:1);
y2 = (-1*((x-0.5).^2) + 0.25)/0.4;
I am using following command to check equality between the values of two arrays,
It is expected that both the arrays should be equal but, the output of above command is a logical array consisting of both zero's and one's. I tried manually cheking the values and they were equal. For example, (I have kept format of command window as long)
>> format long
>> y1(3)
ans =
0.024750000000000
>> y(3)
ans =
0.024750000000000
Later on, I tried this,
>> y1(3)==y(3)
ans =
logical
0
If I explicitely set these values to other variables,
>> format long
>> a=0.024750000000000;
>> b=0.024750000000000;
>> a==b
ans =
logical
1
In the question I am talking about number of extra zeros after decimal point because, if I explicitely remove those zeros from the values of both the arrays (by opening the arryas in variables window), I get,
>> format long
>> y1(3)
ans =
0.024750000000000
>> y(3)
ans =
0.024750000000000
>> y1(3)==y(3)
ans =
logical
1
What is happening here? What am I missing?
How do I check the equality between the two arrays generated in such a manner?
