Formula:146

Digital Library of Mathematical Functions ID 1.6.E4

${\displaystyle{\displaystyle\cos\theta=\frac{\mathbf{a}\cdot\mathbf{b}}{\|\mathbf{a}\|\;\|\mathbf{b}\|};}}$

Symbols List

• ${\displaystyle{\displaystyle\cos\NVar{z}}}$: cosine function
• ${\displaystyle{\displaystyle\theta}}$: angle between a and b
 

Resources that cite this formula

No records found.