how to create an array(1 by 5000) having random values in the range(9-11).

i have to put the array value as input for sine function, but i guess there are certain limitations for that. it would be great if you could help P.S: new to matlab excuse my immaturity.

Answer 1

[Attila]

Hi,

Use the uniform distribution function rand(), that outputs values between 0..1 and multiply the values by 2 and add the base 9:

uni = rand(1,5000)*2 + 9

[sanky kumar]

can i use this array as input for sine function? i guess we'll have some limitations please shed light on this issue

[Attila]

There are no limitations. As sine is a periodic function, you can input almost any value. It will return a vector with an identical shape as the input.

results = sin(uni)
plot(1:5000, results, 1:5000, uni)

Is this what you needed?

Edit: MATLAB encourages working with matrices instead of loops. Usually there is a workaround to avoid loops and most of the basic functions can accept vector inputs.