Mathematica 9 is now available
SEARCH MATHEMATICA 8 DOCUMENTATION
THIS IS DOCUMENTATION FOR AN OBSOLETE PRODUCT.
SEE THE DOCUMENTATION CENTER FOR THE LATEST INFORMATION.
Mathematica > Complex Numbers >
Built-in Mathematica SymbolTutorials »|See Also »|More About »

Arg

Updated In 6 Graphic
Arg[z]
gives the argument of the complex number z.
  • Mathematical function, suitable for both symbolic and numerical manipulation.
  • Arg[z] is left unevaluated if z is not a numeric quantity.
  • Arg[z] gives the phase angle of z in radians.
  • The result from Arg[z] is always between -pi and +pi.
  • Arg[z] has a branch cut discontinuity in the complex z plane running from -∞ to 0.
  • Arg[0] gives 0.
  • Arg automatically threads over lists.
New in 1 | Last modified in 6
© 2013 Wolfram Research, Inc. Japanese
Ask a question about this page  |  Suggest an improvement  |  Leave a message for the team