Angle Between two Vectors

Consider the two non zero vectors a and b , and let theta be the angle between the two vectors, then the angel between the two vectors formula can be derived from the dot product formula,

a . b = |a| |b| cos(theta)

so cosine of angle between two vectors a and b is

cos(theta) = ( a . b ) / (|a| |b|)

theta = arc cos[ (a.b)/ (|a| |b|)

Interactive Graph : 1

Use the Interactive diagram given below to see the angle between vectors in three dimensional view.

  • Stylingbar graphicsview standardview.svg Go Back to Default View: You may move the coordinate system back to the default view.
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