Cody

# Problem 970. Piecewise linear interpolation

Solution 2775448

Submitted on 4 Aug 2020
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### Test Suite

Test Status Code Input and Output
1   Fail
x=[1 1 ; 3 0 ; 1 1]; y=[5 3]; y_correct=[1 1 ; 1.5 0.75 ; 2 0.5 ; 2.5 0.25 ; 3 0 ; 2 0.5 ; 1 1]; assert(all(all(abs(tracers(x,y)-y_correct)<1e-9)))

z = 1.0000 1.5000 2.0000 2.5000 3.0000 z = 1.0000 1.5000 2.0000 2.5000 3.0000 3.0000 2.0000 1.0000 z = 1.0000 0.7500 0.5000 0.2500 0 z = 1.0000 0.7500 0.5000 0.2500 0 0 0.5000 1.0000

Matrix dimensions must agree. Error in Test1 (line 4) assert(all(all(abs(tracers(x,y)-y_correct)<1e-9)))

2   Fail
x=[1 1 ; 2 3 ; 4 2 ; 5 -2]; y=[6 5 3]; y_correct=[1 1 ; 1.2 1.4 ; 1.4 1.8 ; 1.6 2.2 ; 1.8 2.6 ; 2 3 ; 2.5 2.75 ; 3 2.5 ; 3.5 2.25 ; 4 2 ; 4.5 0 ; 5 -2]; assert(all(all(abs(tracers(x,y)-y_correct)<1e-9)))

z = 1.0000 1.2000 1.4000 1.6000 1.8000 2.0000 z = 1.0000 1.2000 1.4000 1.6000 1.8000 2.0000 2.0000 2.5000 3.0000 3.5000 4.0000 z = 1.0000 1.2000 1.4000 1.6000 1.8000 2.0000 2.0000 2.5000 3.0000 3.5000 4.0000 4.0000 4.5000 5.0000 z = 1.0000 1.4000 1.8000 2.2000 2.6000 3.0000 z = 1.0000 1.4000 1.8000 2.2000 2.6000 3.0000 3.0000 2.7500 2.5000 2.2500 2.0000 z = 1.0000 1.4000 1.8000 2.2000 2.6000 3.0000 3.0000 2.7500 2.5000 2.2500 2.0000 2.0000 0 -2.0000

Matrix dimensions must agree. Error in Test2 (line 4) assert(all(all(abs(tracers(x,y)-y_correct)<1e-9)))

3   Pass
a=ceil(100*rand)+10; x=[0 0 ; a a]; y=a+1; y_correct=[0:a ; 0:a]'; assert(all(all(abs(tracers(x,y)-y_correct)<1e-9)))

z = 0 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 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 z = 0 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 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