~~NOTOC~~
<=[[4rpl:start| Index]] \\
<= [[4rpl:start#Math]]  

====== atan2 ======
atan2(<-targetZ <-targetX) ->angleToTarget

===== Description =====
Computes and returns the angle of the point y/x in radians. The return value is between positive pi and negative pi. Note that the first parameter to atan2 is always the z coordinate.

===== Examples =====
<code 4rpl>
trace(atan2(1 2)) #prints '0.463647609'
</code>
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