Name
ATAN
Synopsis
Use ATAN to determine the arctangent of a number. The result of the function is expressed in radians.
To Calculate
=ATAN(Number)-
Number This required argument must specify a numeric value that indicates the tangent value.
Example
Figure 14-2 illustrates how ATAN is used to determine the arctangent for an angle based on the sine value. You will notice the arctangent amount is equal to the radian measurement of the angle.
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