asin -- arcsine

• Usage:

  asin x

  asin I

• Inputs:
  • x
  • I, a real interval
• Outputs:
  • a number, the arcsine (in radians) of x
  • a real interval, an interval containing the arcsines of the points of I

i1 : asin 1

o1 = 1.570796326794897

o1 : RR (of precision 53)