Cody

# Problem 42992. S-T-R-E-T-C-H I-T O-U-T

Solution 1669438

Submitted on 8 Nov 2018 by James Seaward
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### Test Suite

Test Status Code Input and Output
1   Pass
x = [1 5 2 4 3];n=1; y_correct = [1 3 5 3.5 2 3 4 3.5 3]; assert(isequal(stretch_it_out(x,n),y_correct))

y = 1.0000 3.0000 5.0000 3.5000 2.0000 3.0000 4.0000 3.5000 3.0000

2   Pass
x = [1 5 2 4 3];n=2; y_correct=[1 2+1/3 3+2/3 5 4 3 2 2+2/3 3+1/3 4 3+2/3 3+1/3 3]; y=abs(stretch_it_out(x,n)-y_correct); assert(max(y)<1e-9)

y = 1.0000 2.3333 3.6667 5.0000 4.0000 3.0000 2.0000 2.6667 3.3333 4.0000 3.6667 3.3333 3.0000

3   Pass
k=ceil(5*rand)+1 x=1:k:121 n=k-1; assert(isequal(stretch_it_out(x,n),1:121))

k = 4 x = Columns 1 through 30 1 5 9 13 17 21 25 29 33 37 41 45 49 53 57 61 65 69 73 77 81 85 89 93 97 101 105 109 113 117 Column 31 121 y = Columns 1 through 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Columns 31 through 60 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 Columns 61 through 90 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 Columns 91 through 120 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 Column 121 121

4   Pass
x=[1 -1 1 -1 1 -1 1];n=3; y_correct=[1 0.5 0 -0.5 -1 -0.5 0 0.5 1 0.5 0 -0.5 -1 -0.5 0 0.5 1 0.5 0 -0.5 -1 -0.5 0 0.5 1]; assert(isequal(stretch_it_out(x,n),y_correct))

y = Columns 1 through 18 1.0000 0.5000 0 -0.5000 -1.0000 -0.5000 0 0.5000 1.0000 0.5000 0 -0.5000 -1.0000 -0.5000 0 0.5000 1.0000 0.5000 Columns 19 through 25 0 -0.5000 -1.0000 -0.5000 0 0.5000 1.0000

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