c =

    0.0024    0.4943    3.7766

for i=1:24
w(i)=c(3) + c(2)*i + c(1)*sin(i);
end
>> w

w =

  Columns 1 through 8

    4.2728    4.7673    5.2597    5.7518    6.2456    6.7414    7.2379    7.7330

  Columns 9 through 16

    8.2259    8.7178    9.2110    9.7064   10.2029   10.6985   11.1920   11.6840

  Columns 17 through 24

   12.1766   12.6714   13.1678   13.6639   14.1579   14.6502   15.1424   15.6365