how to get the outputs of an expression with a random variable input

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segun 2014-4-21

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https://ww2.mathworks.cn/matlabcentral/answers/126501-how-to-get-the-outputs-of-an-expression-with-a-random-variable-input

编辑： segun 2014-4-21

Hi,

I need hints on how to use random variable change as one of the input in an expression and get the (30)different outputs displayed for each of the random variable change. An example is shown below:

    f=100;
    a = 90
    b = 100
    z= a + (b-a)*rand(1:30)
    c = 2; d = 2;
    Y = f*b*c*z; 
    disp(Y); %  display 30  Y outputs  for all the  random variable changes

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Answer 1

Walter Roberson 2014-4-21

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https://ww2.mathworks.cn/matlabcentral/answers/126501-how-to-get-the-outputs-of-an-expression-with-a-random-variable-input#answer_134025

If you want a vector of 30 random numbers, you would use rand(1,30)

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segun 2014-4-21

I mean how do I make the above expression display 30 different answers from the input of 30 random numbers as shown in the matlab codes posted

Walter Roberson 2014-4-21

The disp(Y) will do that. Your f, b, and c are scalars and your z is a vector (once you fix the rand() call), so your Y = f*b*c*z will be a vector, and disp(Y) will display that vector of 30 values.

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