Cody

# Problem 2100. distance to a straight line (2D) given any 2 distinct points on this straight line

Solution 1371186

Submitted on 6 Dec 2017
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### Test Suite

Test Status Code Input and Output
1   Fail
p1=[-1;0]; p2=[2;3]; pe=[-2;0]; d=round(1e+6*dist2line(p1,p2,pe))/1e+6; assert(isequal(d,7.071070e-01))

Error using cross (line 25) A and B must be of length 3 in the dimension in which the cross product is taken. Error in dist2line (line 4) d = norm(cross(a,b)) / norm(a); Error in Test1 (line 5) d=round(1e+6*dist2line(p1,p2,pe))/1e+6;

2   Fail
p1=[-1;0]; p2=[2;3]; pe=[-0.8;0.1]; d=round(1e+6*dist2line(p1,p2,pe))/1e+6; assert(isequal(d,7.071100e-02))

Error using cross (line 25) A and B must be of length 3 in the dimension in which the cross product is taken. Error in dist2line (line 4) d = norm(cross(a,b)) / norm(a); Error in Test2 (line 5) d=round(1e+6*dist2line(p1,p2,pe))/1e+6;

3   Fail
p1=[-1;0]; p2=[2;3]; pe=[0;0.9]; d=round(1e+6*dist2line(p1,p2,pe))/1e+6; assert(isequal(d,7.071100e-02))

Error using cross (line 25) A and B must be of length 3 in the dimension in which the cross product is taken. Error in dist2line (line 4) d = norm(cross(a,b)) / norm(a); Error in Test3 (line 5) d=round(1e+6*dist2line(p1,p2,pe))/1e+6;

4   Fail
p1=[0;-1]; p2=[0;1]; pe=[-pi;100]; d=round(1e+6*dist2line(p1,p2,pe))/1e+6; assert(isequal(d,3.141593))

Error using cross (line 25) A and B must be of length 3 in the dimension in which the cross product is taken. Error in dist2line (line 4) d = norm(cross(a,b)) / norm(a); Error in Test4 (line 5) d=round(1e+6*dist2line(p1,p2,pe))/1e+6;

5   Fail
p1=[-1;0]; p2=[2;3]; pe=[0;1]; d=round(1e+6*dist2line(p1,p2,pe))/1e+6; assert(isequal(d,0))

Error using cross (line 25) A and B must be of length 3 in the dimension in which the cross product is taken. Error in dist2line (line 4) d = norm(cross(a,b)) / norm(a); Error in Test5 (line 5) d=round(1e+6*dist2line(p1,p2,pe))/1e+6;