ConTeXt: Math displays: eq. number and aligneq

ConTeXt: Math displays: eq. number and aligneq

[Tobias Burnus]

Hi,

what's the best methode to typeset an equation number for a aligned
equation?

I found a \formulenummer (ConTeXt manual (Dutch), edition 960122, page
281), but this caused a lot of error messages with this few lines
(context-de, ConTeXt ver: 1999.2.1):

\platziereformel[-]
\startformel
\eqalignno{\overline P &= \frac{1}{T}\int\limits_0^T U_0I_0\cos^2\omega
t\,\dD t
         \qquad\hbox{mit $T=2\pi$}&\cr
 &=\frac{1}{2} U_0I_0.&{\formulenummer}\cr}
\stopformel

\bye
> ! Undefined control sequence.
> <argument> ...its _0^T U_0I_0\cos ^2\omega t\,\dD 
>                                                   t \qquad \hbox {mit $T=2\p...
> 
> \eqalignno ...\@lign ##$}\tabskip \z@skip \crcr #1
>                                                   \crcr }
> <argument> ...1}{2} U_0I_0.&{\formulenummer }\cr }
>                                                    
> \dodoplaatsformule ...lenummer }\dostartformula #4
>                                                   \dostopformula \else \doif...
> l.7 \stopformel

Tobias

Re: ConTeXt: Math displays: eq. number and aligneq

[Taco Hoekwater]

>>>>> "TB" == Tobias Burnus <burnus@gmx.de> writes:

 TB> Hi, what's the best methode to typeset an equation number for a
 TB> aligned equation?

 TB> I found a \formulenummer (ConTeXt manual (Dutch), edition 960122,
 TB> page 281), but this caused a lot of error messages with this few
 TB> lines (context-de, ConTeXt ver: 1999.2.1):

 TB> \platziereformel[-] \startformel \eqalignno{\overline P &=
 TB> \frac{1}{T}\int\limits_0^T U_0I_0\cos^2\omega t\,\dD t
 TB> \qquad\hbox{mit $T=2\pi$}&\cr &=\frac{1}{2}
 TB> U_0I_0.&{\formulenummer}\cr} \stopformel

 TB> \bye
 >> ! Undefined control sequence.  <argument> ...its _0^T U_0I_0\cos
 >> ^2\omega t\,\dD t \qquad \hbox {mit $T=2\p...

This is an error from \dD, unless I missed something.

Greetings, Taco

Re: ConTeXt: Math displays: eq. number and aligneq

[Tobias Burnus]

Taco Hoekwater wrote:
> This is an error from \dD, unless I missed something.

Well I don't know, using this I only get error messages:

\platziereformel[-]
$$
a+b = c\qquad\mbox{\formulenummer}
$$

\platziereformel[-]
$$
a+b = c\qquad\formulenummer
$$

\platziereformel[-]
$$
\eqalignno{
a+b &= c  &\formulenummer\cr%
  d &= e+f&\cr}
$$
\bye

Tobias