Problem with \leqalignno

11 Sep 2016

      Hello All,

 I am trying to compile the following example (from
http://wiki.contextgarden.net/Math/Display) with context:

\starttext

\placeformula
\startformula
\leqalignno{c^2 &= a^2 + b^2  &\formulanumber{a} \cr
           a^2 + b^2 &= c^2  &\subformulanumber{b} \cr
           d^2 &= e^2        &\formulanumber\cr}
\stopformula

\stoptext

 but I get the following error message: {{{
.
.
.
tex error       > tex error on line 7 in file
/home/user/math-example.tex: ! Undefined control sequence

<argument> ...er {a} \cr a^2 + b^2 &= c^2 &\subformulanumber
                                                  {b} \cr d^2 &= e^2 &\formu...
\math_both_eqalign_no_normal ...ratchtoks \crcr #2
                                                  \crcr \egroup \math_finish...
l.7            d^2 &= e^2        &\formulanumber\cr}

 1     \starttext
 2
 3     \placeformula
 4     \startformula
 5     \leqalignno{c^2 &= a^2 + b^2  &\formulanumber{a} \cr
 6                a^2 + b^2 &= c^2  &\subformulanumber{b} \cr
 7 >>             d^2 &= e^2        &\formulanumber\cr}
 8     \stopformula
 9
10     \stoptext
11

?
}}}

 Am I doing something wrong? Any help would be gratefully appreciated.

 Thanks
 Mingranina

 ----------------------
 Luatex Version: 0.98.3
 ConTeXt Version: 2016.09.06 19:11 MKIV beta  fmt: 2016.9.9  int:
english/english

Mingranina Gingranina

Aditya Mahajan

Otared Kavian

Hans Hagen

Mingranina Gingranina

Otared Kavian

Mingranina Gingranina

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