Added option to stop the simplyify_homogeneous with linear equations.

diff --git a/ajpastor/dd_functions/toDiffAlgebraic.py b/ajpastor/dd_functions/toDiffAlgebraic.py
index 60d4013..d2d906a 100644 (file)
--- a/ajpastor/dd_functions/toDiffAlgebraic.py
+++ b/ajpastor/dd_functions/toDiffAlgebraic.py
@@ -562,7 +562,7 @@ def build_initial_from_homogeneous(init, n, depth, base):
     return build_initial_from_homogeneous(tuple(new_init), n, depth-1, base);
 
 @cached_function
-def simplify_homogeneous(poly):
+def simplify_homogeneous(poly, _stop_linear=True):
     '''
         Given an homogeneous differential polynomial 'poly', we reduce the order of the equation by 1
         using the change of variables y(x) = exp(int(u(x))).
@@ -574,7 +574,7 @@ def simplify_homogeneous(poly):
     poly = fromFinitePolynomial_toInfinitePolynomial(poly);
     parent = poly.parent(); y = parent.gens()[0];
     
-    if(not(poly.is_homogeneous()) or (poly.degree() == 1)):
+    if(not(poly.is_homogeneous()) or (_stop_linear and poly.degree() == 1)):
         return (poly,0);
     
     d = {str(y[0]) : parent.one()};

diff --git a/releases/diff_defined_functions__0.6.zip b/releases/diff_defined_functions__0.6.zip
index d943b0b..7ab871f 100644 (file)
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diff --git a/releases/old/diff_defined_functions__0.6__18.12.05_17:21:14.zip b/releases/old/diff_defined_functions__0.6__18.12.05_17:21:14.zip
new file mode 100644 (file)
index 0000000..7ab871f
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