gnu: Add jacal.

* gnu/packages/maths.scm (jacal): New variable.
* gnu/packages/patches/jacal-fix-texinfo.patch: New file.

1 files changed, 92 insertions, 0 deletions

diff --git a/gnu/packages/patches/jacal-fix-texinfo.patch b/gnu/packages/patches/jacal-fix-texinfo.patch
new file mode 100644
index 0000000000..83e44a3164
--- /dev/null
+++ b/gnu/packages/patches/jacal-fix-texinfo.patch
@@ -0,0 +1,92 @@
+Fix the broken Texinfo in the Jacal package documentation
+
+--- jacal/jacal.texi,orig	2017-02-23 20:35:55.303980444 +0100
++++ jacal/jacal.texi	2017-02-23 20:53:14.539024674 +0100
+@@ -343,7 +343,7 @@
+ 
+ With the standard input grammar, the precedence of @samp{-} as a prefix
+ behaves strangely.  @code{a^-b*c} becomes @code{a^(-b*c)} while
+-@code{@result{a^b*c} (a^b)*c}.
++@code{a^b*c @result{} (a^b)*c}.
+ 
+ Using @code{divide} to divide a polynomial by an integer does not work.
+ 
+@@ -675,8 +675,9 @@
+ e1: ---------
+         a
+ @end example
++@end deffn
+ 
+-@deffnx Command suchthat var exp
++@deffn Command suchthat var exp
+ 
+ If an expression rather than an equation is given to @code{suchthat}, it
+ is as though the equation @code{@var{exp}=0} was given.
+@@ -688,8 +689,9 @@
+ e2: ---------
+         a
+ @end example
++@end deffn
+ 
+-@deffnx Operator | var exp_or_eqn
++@deffn Operator | var exp_or_eqn
+ 
+ An alternative infix notation is also available for @code{suchthat}.
+ 
+@@ -857,8 +859,9 @@
+ 
+ Returns the degree of polynomial or equation @var{poly} in variable
+ @var{var}.
++@end deffn
+ 
+-@deffnx Operator degree poly
++@deffn Operator degree poly
+ 
+ Returns the total-degree, the degree of its highest degree monomial,
+ of polynomial or equation @var{poly}.
+@@ -1016,10 +1019,12 @@
+ Returns @var{poly1} reduced with respect to @var{poly2} (or @var{eqn})
+ and @var{var}.  If @var{poly2} is univariate, the third argument is not
+ needed.
++@end deffn
+ 
+-@deffnx Command mod poly1 n
++@deffn Command mod poly1 n
+ Returns @var{poly1} with all the coefficients taken modulo @var{n}.
+-@deffnx Command mod poly1
++@end deffn
++@deffn Command mod poly1
+ Returns @var{poly1} with all the coefficients taken modulo the
+ current modulus.
+ 
+@@ -1220,8 +1225,9 @@
+ e1: -1 2  3 5
+ @end group
+ @end example
++@end deffn
+ 
+-@deffnx Command factor polyratio
++@deffn Command factor polyratio
+ Given a univariate ratio of polynomials @var{polyratio}, returns a
+ matrix of factors and exponents.
+ 
+@@ -2028,7 +2034,7 @@
+ formed from the pair-wise products of components of the inputs.  For
+ example, for the input tensors @code{x[a,b]} and @code{y[c]}
+ @example
+-@result{z:tmult(x,y);} z[a,b,c] = x[a,b]*y[c]
++z:tmult(x,y); @result{} z[a,b,c] = x[a,b]*y[c]
+ @end example
+ 
+ With an additional argument, @code{tmult} will produce the inner product
+@@ -2464,8 +2470,9 @@
+ If you do not wish to return to Jacal but really want to terminate the
+ session and return to the operating system, then after typing
+ @code{qed();}, type @code{(slib:exit)} or use @code{quit}.
++@end deffn
+ 
+-@deffnx Command quit
++@deffn Command quit
+ Exit directly from Jacal to the operating system.  You will not be able
+ to continue your Jacal session.
+