Difference between revisions of "Manuals/calci/DSEC"

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'''DSEC(x)'''
 
'''DSEC(x)'''
 
*'''x  ''' is the angle in radians.
 
*'''x  ''' is the angle in radians.
* SEC(-X)=-SEC(X)
+
* SEC(-x)=-SEC(x)
 
* Result shows DSEC(abc)= NAN
 
* Result shows DSEC(abc)= NAN
  

Revision as of 06:17, 5 November 2013

DSEC(x)


  • where x is the angle in Degrees
  • by default Calci use Radian as angle

SEC can be used if the angle is in Radians.

Description

  • This function is used to obtain the Secant value of 'x' in degrees.
  • It is the reciprocal of COS function i.e, SEC(x) = 1 / COS(x).
  • In a right angled triangle SEC(x) = Hypotenuse / Adjacent side.
  • To obtain the value in Radians multiply with PI()/180 or use SEC function SEC(x)
  • DSEC returns NaN if 'x' is not real

The angle can be a single value or any complex array of values.

The following example shows how DSEC is applied to an array of numbers containing numbers 1..10.

  • Type =1..10@DSEC in Calci
  • Type =1..10@DSEC or 1..10@DSEC in ZOS
Number DSEC
1 1.000152328
2 1.000609544
3 1.001372346
4 1.002441898
5 1.003819838
6 1.00550828
7 1.007509825
8 1.009827573
9 1.012465126
10 1.015426612

Examples

DSEC(x)

  • x   is the angle in radians.
  • SEC(-x)=-SEC(x)
  • Result shows DSEC(abc)= NAN
DSEC(Radian) Value
DSEC(12) 1.0223405948650293
DSEC(81) 6.392453221499659
DSEC(-81) 6.392453221499659

See Also

References