Vincent Renardias
vincent@ldsol.com 1998-2000.
Joaquim Fellmann
joaquim@hrnet.fr 2000.
Christophe Merlet
redfox@redfoxcenter.org 2000-2006.
Christophe Fergeau
teuf@users.sourceforge.net 2002-2003.
Sun G11n
gnome_int_l10n@ireland.sun.com 2002.
Robert-André Mauchin
zebob.m@pengzone.org 2006-2008.
Stéphane Raimbault
stephane.raimbault@gmail.com 2007.
Yannick Tailliez
ytdispatch-libre@yahoo.com 2008.
Claude Paroz
claude@2xlibre.net 2008-2010.
Gérard Baylard
gerard dot b at bbox dot fr 2010

# Trigonometry

Trigonometry can be performed using the sin, cos, and tan function.

sin 45

The angle units used can be changed from the Calculator Preferences menu. Trigonometry buttons are visible when in Advanced mode.

Hyperbolic functions are available by adding "h" to the end of a function.

sinh 0.34

Inverse functions are entered either using the inverse symbol ⁻¹ (Ctrl I) or the "a" form of the function. The following two equations are equivalent.

sin⁻¹ 0.5

asin 0.5

To enter π with the keyboard use Ctrl P.