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[ginac.git] / NEWS

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 This file records noteworthy changes.
 
-0.7.1 ()
+0.7.3 (<date>)
+* Added a section to the tutorial about adding new algebraic classes to GiNaC
+
+0.7.2 (17 February 2001)
+* Several bugfixes in power series expansion, one of them critical.
+
+0.7.1 (7 February 2001)
 * Fix problems with Cint that were caused by CLN's overloaded operator new.
+* Fix compilation errors with GCC3.
+* normal() handles large sums of fractions better and normalizes the exponent
+  of power expressions.
+* expand() always expands the exponent and transforms x^(a+b) -> x^a*x^b.
+* Some bugfixes of series expansion around branch cuts of special functions.
 
 0.7.0 (15 December 2000)
 * Requires CLN 1.1 now.  Class numeric doesn't use an indirect pointer to the
   actual representation any more.  This is a speedup.
-* mul::expand() was reengineered to not allocate temporary excess memory.
+* mul::expand() was reengineered to not allocate excess temporary memory.
 * Non-integer powers of a symbol are treated as constants by (l)degree() and
   coeff().  Using these functions on an expression containing such powers used
   to fail with an internal error message.  The side-effect is that collect()