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*It is the reciprocal of COS function i.e, '''SEC(x)''' = '''1 / COS(x)'''.<br/>
*It is the reciprocal of COS function i.e, '''SEC(x)''' = '''1 / COS(x)'''.<br/>
*In a right angled triangle '''SEC(x) = Hypotenuse / Adjacent side'''.<br/>
*In a right angled triangle '''SEC(x) = Hypotenuse / Adjacent side'''.<br/>
*To obtain the value in Radians multiply with PI()/180 or use SEC function SEC(X)
*To obtain the value in Radians multiply with PI()/180 or use SEC function SEC(x)
*DSEC returns NaN if 'x' is not real
*DSEC returns NaN if 'x' is not real
The angle can be a single value or any complex array of values.
The angle can be a single value or any complex array of values.