Creating vector of real numbers and use it in another function

Hi,

I would like to create a vector with 1 row that contains real numbers from 10 to 90. I would also like to use this array of numbers within a for loop which takes in each of those numbers for processing. Here is the messy version I have.

*Rather than writing these numbers out in a primitive fashion, I would like to create a loop here to generate real numbers between 10 and 90*.

inc   =[10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90]

n1    = 1
e_r   = 2.3
mu_r  = 1

mu_0  = 4e-7*pi
e_0   = 8.8541878176e-12

n2    = sqrt(mu_r*e_r)

imp_0 = 120*pi
imp_r = sqrt((mu_0*mu_r)/(e_0*e_r))

I would like to use the array of vectors here for each real number between 10 and 90. My loop goes from 1 to 81 because there are 81 values between 10 and 90(including 10 and 90.)

for index = 1:81
     tran(index)= asind(((n1*sind(inc(index)))/n2));

       ref_coeff_para(index)     = abs((imp_0*cosd(inc(index))-imp_r*cosd(tran(index)))/(imp_r*cosd(tran(index))+imp_0*cosd(inc(index))))
       trans_coeff_para(index)   = abs(2*imp_r*cosd(inc(index))/(imp_r*cosd(tran(index))+imp_0*cosd(inc(index))))

       ref_coeff_perp(index)     = abs((imp_r*cosd(inc(index))-imp_0*cosd(tran(index)))/(imp_r*cosd(inc(index))+imp_0*cosd(tran(index))))
       trans_coeff_perp(index)   = abs(2*imp_r*cosd(inc(index))/(imp_r*cosd(inc(index))+imp_0*cosd(tran(index))))

    end

Any help is appreciated

Answer 1

[Stephen23]

Instead of laboriously writing out every number, why not get the computer to create that vector using the colon operator:

 inc = 10:90;

and then simply write your loop to iterate over all of its elements:

 for index = 1:numel(inc)
     ...
 end

You might like to do the introductory tutorials, which introduce these kinds of basic MATLAB usage:

http://www.mathworks.com/help/matlab/getting-started-with-matlab.html