ExpToTrig

ExpToTrig[expr]

converts exponentials in expr to trigonometric functions.

Details

  • ExpToTrig generates both circular and hyperbolic functions.
  • ExpToTrig tries when possible to give results that do not involve explicit complex numbers.
  • ExpToTrig automatically threads over lists, as well as equations, inequalities and logic functions.

Examples

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Basic Examples  (1)

Convert from exponentials to trigonometric functions:

Scope  (3)

ExpToTrig works with hyperbolic functions:

Applications  (1)

Show that the unit circle maps to an interval in the Joukowski map:

Properties & Relations  (3)

ExpToTrig is the inverse of TrigToExp:

ExpToTrig threads elementwise over lists, equations, inequalities and logic functions:

Introduced in 1996
 (3.0)
 |
Updated in 2007
 (6.0)