Cody

# Problem 635. Angle between Two Vectors

Solution 1933825

Submitted on 13 Sep 2019 by Le Cong Hieu
• Size: 8
• This is the leading solution.
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### Test Suite

Test Status Code Input and Output
1   Pass
a = [1 0]; b = [0 1]; expected=pi/2; theta = solve_included_vector_angle(a,b) assert(0.99*expected-.001<=theta && theta<=expected*1.01+.001 ) % Is there a better way to allow tolerances?

[Warning: Function assert has the same name as a MATLAB builtin. We suggest you rename the function to avoid a potential name conflict.] [> In unix (line 32) In solve_included_vector_angle (line 2) In ScoringEngineTestPoint1 (line 4) In solutionTest (line 3)] theta = 0

2   Pass
a = [1 1 0]; b = [1 1 2^0.5]; expected=pi/4; theta = solve_included_vector_angle(a,b) assert(0.99*expected-.001<=theta && theta<=expected*1.01+.001 )

[Warning: Function assert has the same name as a MATLAB builtin. We suggest you rename the function to avoid a potential name conflict.] [> In unix (line 32) In solve_included_vector_angle (line 2) In ScoringEngineTestPoint2 (line 4) In solutionTest (line 5)] theta = 0

3   Pass
a = [2 2]; b = [0 1]; expected=pi/4; theta = solve_included_vector_angle(a,b) assert(0.99*expected-.001<=theta && theta<=expected*1.01+.001 )

[Warning: Function assert has the same name as a MATLAB builtin. We suggest you rename the function to avoid a potential name conflict.] [> In unix (line 32) In solve_included_vector_angle (line 2) In ScoringEngineTestPoint3 (line 4) In solutionTest (line 7)] theta = 0

4   Pass
a = [-1 1]; b = [4 0]; expected=0.75*pi; theta = solve_included_vector_angle(a,b) assert(0.99*expected-.001<=theta && theta<=expected*1.01+.001 )

[Warning: Function assert has the same name as a MATLAB builtin. We suggest you rename the function to avoid a potential name conflict.] [> In unix (line 32) In solve_included_vector_angle (line 2) In ScoringEngineTestPoint4 (line 4) In solutionTest (line 9)] theta = 0

5   Pass
a = [-1 2 3]; b = [1 2 4]; expected=0.161*pi; theta = solve_included_vector_angle(a,b) assert(0.99*expected-.001<=theta && theta<=expected*1.01+.001 )

[Warning: Function assert has the same name as a MATLAB builtin. We suggest you rename the function to avoid a potential name conflict.] [> In unix (line 32) In solve_included_vector_angle (line 2) In ScoringEngineTestPoint5 (line 4) In solutionTest (line 11)] theta = 0