Hi, I have set of values for x (x = 1:10) and I have a equation y = x^(1/2)/x, how can i get and display an array of values of y from the x's ?

All i get is one number, when i should be getting a array of y values.

[Geoff Hayes]

Gurinder - please show your code that you have written so that we can explain why you are getting only one number when it should be an array.

[Gurinder Punni]

x = 1:10;

y = x.^(1/2)./x

fprintf(' %.2f \n', y)

this is my code

Answer 1

[ME]

I don't know how you've got one number but I think you should be using:

x = 1:10
y = x.^(1/2)./x

[Gurinder Punni]

someone corrected me on my equation before, can you explain the signifance of the . after the x.

[Star Strider]

Array vs. Matrix Operations

[ME]

As Star Strider says, thius is the difference between array and matrix operations - i.e. do you want the operation to perform as if your inputs are matrices or not.

If you starts with

A=[2 2 2;2 2 2;2 2 2]
B=[3 3 3;3 3 3;3 3 3]

then A*B will perform a matrix multiplication and give:

A*B
ans =
    18    18    18
    18    18    18
    18    18    18

whereas A.*B will do an array operation and calculate element-wise to give:

A.*B
ans =
     6     6     6
     6     6     6
     6     6     6

Can I also please request that if this answer was of help to you that you accept my answer.