So I have data for the class but how do I plot the data using Octave with (a) a linear vertical scale and (b) a logarithmic vertical scale (use semilogy). And how would I add on a label? I keep thinking I have the correct code but then I get an error returned.

d(1) = 1; c(1) = 15;

d(2) = 7; c(2) = 35

d(3) = 14; c(3) = 68

d(4) = 21; c(4) = 435

d(5) = 28; c(5) = 4026

d(6) = 35; c(6) = 30335

d(7) = 42; c(7) = 138652

d(8) = 49; c(8) = 334041

d(9) = 56; c(9) = 558642

d(10) = 63; c(10) = 767943

d(11) = 70; c(11) = 986774

d(12) = 77; c(12) = 1191080

d(13) = 84; c(13) = 1378457

d(14) = 91; c(14) = 1544659

d(15) = 98; c(15) = 1709474

d(16) = 105; c(16) = 1862466

d(17) = 112; c(17) = 2019317

d(18) = 119; c(18) = 2176606

d(19) = 126; c(19) = 2372708

d(20) = 133; c(20) = 2648942

d(21) = 140; c(21) = 3013495

d(22) = 147; c(22) = 3441893

d(23) = 154; c(23) = 3929326

d(24) = 161; c(24) = 4422097

d(25) = 168; c(25) = 4879434

d(26) = 175; c(26) = 5273823

d(27) = 182; c(27) = 5656589

d(28) = 189; c(28) = 5973500

d(29) = 196; c(29) = 6277629