Manuals/calci/ATAN

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ATAN(x)


  • Where x is a number
  • The value of ATAN(x) is in Radians.
  • by default the result obtained will be in radians
  • Calci returns the arcTAN (inverse Tan) of a number. Output is the angle in radians.
  • The number can be a single value or any number of values.

For example, ATAN(0.5,(-0.2),1) gives the arcTAN or inverseTAN values for each element.

Description

Consider     x = -0.8    then     =ATAN(0.8)    gives    0.67474094

  • This function is the inverse function of TAN in trigonometry
  • Also it is called as Cyclometric function.
  • ATAN is described as arctan and denoted by  .
  • In ATAN(x) ,x value applicable for all real numbers.
  • To find the angle in degrees, multiply the result angle with 180/PI.
  • DEGREES function can also be used.

For example ATAN(-0.8)*180/PI() or DEGREES(ATAN(-0.8)) gives -38.659808

Examples

ATAN(x)

  • x   is the angle in radians.
ATAN(x) Value(Radian)
ATAN(0) 0
ATAN(1) 0.78539816
ATAN(90) 1.55968567

See Also

References