lngamma -- logarithm of the Gamma function

Synopsis

• Usage:

  lngamma x

• Inputs:
  • x, a real number,
• Outputs:
  • a real number or a complex number, the logarithm of the Gamma function of x as a real or complex number.

Description

i1 : lngamma 2.1

o1 = .0454377385444852

o1 : RR (of precision 53)

i2 : lngamma(-1.1)

o2 = 2.27365115292446

o2 : RR (of precision 53)

i3 : lngamma(-2.1)

o3 = 1.53171380819509+3.14159265358979*ii

o3 : CC (of precision 53)

i4 : lngamma (-2.000000000000000000000000000000001p120)

o4 = 75.293085156597112659506221744398934+
     3.14159265358979323846264338327950288*ii

o4 : CC (of precision 120)

See also

• Gamma -- Gamma function