From: Jens-Uwe Morawski <morawski@gmx.net>
Subject: Re: hyperbolic funtions in MP
Date: Sat, 17 May 2003 19:53:46 +0200 [thread overview]
Message-ID: <20030517195346.0f09787d.morawski@gmx.net> (raw)
In-Reply-To: <3EC63475.5010407@arcor.de>
On Sat, 17 May 2003 15:09:09 +0200
Peter Rolf <peter.rolf@arcor.de> wrote:
> I have problems using the hyperbolic functions sinh and cosh (MetaFun manual
> page 204) in metapost. A simple call of sinh (with valid parameter)
>
> ct:= sinh(3) ;
>
the following definition in mp-tool.mp
vardef sinh primary x = save xx ; xx = exp xx ; (xx-1/xx)/2 enddef
should be
vardef sinh primary x = save xx ; xx = exp x ; (xx-1/xx)/2 enddef
until Hans has fixed the problem you may use
\startMPinclusions
vardef sinh primary x = ((exp x) - ( exp (-x)))/2 enddef ;
vardef cosh primary x = ((exp x) + ( exp (-x)))/2 enddef ;
\stopMPinclusions
or if you prefer Hans' math definitions
\startMPinclusions
vardef sinh primary x = save xx ; xx = exp x ; (xx-1/xx)/2 enddef ;
vardef cosh primary x = save xx ; xx = exp x ; (xx+1/xx)/2 enddef ;
\stopMPinclusions
Jens
prev parent reply other threads:[~2003-05-17 17:53 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-05-17 13:09 Peter Rolf
2003-05-17 15:17 ` Hans Hagen
2003-05-17 17:53 ` Jens-Uwe Morawski [this message]
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