+ * Revision 1.5 1999/12/22 15:54:41 mdw
+ * Adjust Karatsuba parameters. Calculate destination size better.
+ *
+ * Revision 1.4 1999/12/13 15:35:16 mdw
+ * Slightly different rules on memory allocation.
+ *
+ * Revision 1.3 1999/12/11 10:57:43 mdw
+ * Karatsuba squaring algorithm.
+ *