File:Funhipgeom.bad.png

Summary
Image by user:CiaPan, created in March 2004.

Warning: this image is incorrect, the area marked is twice smaller than it should be. It was originally uploaded as image:Funhipgeom.png. I upload this version under new name just to keep the discussion context on Reference desk/Mathematics (archive: Reference desk/Archives/Mathematics/2006 November 10)

For the corrected image see image:Funhipgeom.png, or newer vector version image:Hyperbolic functions.svg.