Cody

# Problem 381. Angle between two vectors

Solution 2056189

Submitted on 12 Dec 2019
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### Test Suite

Test Status Code Input and Output
1   Fail
u = [0.5 0.5 0];; v = [1 0 0]; angle_in_degrees = vector2angle(u,v) assert(strcmp(num2str(angle_in_degrees),'45'))

Undefined function 'atand2' for input arguments of type 'double'. Error in vector2angle (line 4) a = atand2(norm(cross(n,m)),dot(n,m)); Error in Test1 (line 3) angle_in_degrees = vector2angle(u,v)

2   Fail
u = [0 0 1]; v = [1 0 0]; angle_in_degrees = vector2angle(u,v) assert(strcmp(num2str(angle_in_degrees),'90'))

Undefined function 'atand2' for input arguments of type 'double'. Error in vector2angle (line 4) a = atand2(norm(cross(n,m)),dot(n,m)); Error in Test2 (line 3) angle_in_degrees = vector2angle(u,v)

3   Fail
u = [0 0.8 1]; v = [1 0.3 0]; angle_in_degrees = vector2angle(u,v) assert(strcmp(num2str(round(angle_in_degrees)),'80'))

Undefined function 'atand2' for input arguments of type 'double'. Error in vector2angle (line 4) a = atand2(norm(cross(n,m)),dot(n,m)); Error in Test3 (line 3) angle_in_degrees = vector2angle(u,v)