atan2

Summary

atan2 is an inverse trigonometric function^[1]. atan2 draws 600 Wikipedia views per month (inverse_trigonometric_function category, ranking #1 of 5).^[2]

Key Facts

• atan2's image is recorded as Atan2 diagram.svg^[3].
• atan2's instance of is recorded as inverse trigonometric function^[4].
• atan2's instance of is recorded as binary function^[5].
• atan2's based on is recorded as arcus tangent^[6].
• atan2's Commons category is recorded as Atan2^[7].
• atan2's Freebase ID is recorded as /m/0b3kdh^[8].
• atan2's definition domain is recorded as punctured real plane^[9].
• atan2's codomain is recorded as set of real numbers^[10].
• atan2's partial function domain is recorded as real plane^[11].
• atan2's different from is recorded as arcus tangent^[12].
• atan2's defining formula is recorded as \operatorname{atan2}(y, x) = \begin{cases} \arctan\left(\frac y x\right) & \qquad x > 0 \ \arctan\left(\frac y x\right) + \pi& \qquad y \ge 0 , x < 0 \ \arctan\left(\frac y x\right) - \pi& \qquad y < 0 , x < 0 \ +\frac{\pi}{2} & \qquad y > 0 , x = 0 \ -\frac{\pi}{2} & \qquad y < 0 , x = 0 \ \text{undefined} & \qquad y = 0, x = 0 \end{cases}^[13].
• atan2's schematic is recorded as Atan2definition.svg^[14].
• atan2's maintained by WikiProject is recorded as WikiProject Mathematics^[15].
• atan2's Microsoft Academic ID is recorded as 128709398^[16].

Why It Matters

atan2 draws 600 Wikipedia views per month (inverse_trigonometric_function category, ranking #1 of 5).^[2] atan2 has Wikipedia articles in 11 language editions, a strong signal of global cultural recognition.^[17] atan2 is known by 6 alternative names across languages and contexts.^[18]