atan: Difference between revisions
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Using '''atan''' x is fine if you can be certain that x is a finite number. For example:<br> | Using '''atan''' x is fine if you can be certain that x is a finite number. For example:<br> | ||
_angle = '''atan''' 1/0<br> | _angle = '''atan''' 1/0<br> | ||
will create a divide by zero error, even though the angle is | will create a divide by zero error, even though the angle is 90.<br> | ||
Better is to use [[atan2]] | Better is to use [[atan2]] | ||
Revision as of 17:44, 21 May 2006
atan x
Operand types:
x: Number
Type of returned value:
Description:
Arctangens of x, result in degrees.
Example:
_angle = atan 1 ..........Result is 45
Notes:
Using atan x is fine if you can be certain that x is a finite number. For example:
_angle = atan 1/0
will create a divide by zero error, even though the angle is 90.
Better is to use atan2