OONONNNO

2D vector analysis

Magnitudes, dot and cross products and angle between vectors.

Significant digits

Unit system

Formulas

|a|=\sqrt{a_x^2+a_y^2}

|b|=\sqrt{b_x^2+b_y^2}

a\cdot b=a_xb_x+a_yb_y

a\times b=a_xb_y-a_yb_x

\theta=\arccos\frac{a\cdot b}{|a||b|}

Magnitudes, dot and cross products and angle between vectors.