X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=blobdiff_plain;f=doc%2Ftutorial%2Fginac.texi;h=346a2955def07a4dbcd65a2083dfbb97699a8627;hp=e43b4bb32c20ffaa79526927e225316ef6149596;hb=ad6a3b1d78e138f1a4297d74a684b57f980272c9;hpb=80b2042a896022bc5d774b27aa9f56a42a082a6f diff --git a/doc/tutorial/ginac.texi b/doc/tutorial/ginac.texi index e43b4bb3..346a2955 100644 --- a/doc/tutorial/ginac.texi +++ b/doc/tutorial/ginac.texi @@ -684,8 +684,8 @@ ex MyEx4 = sin(x + 2*y) + 3*z + 41; // containing a function ex MyEx5 = MyEx4 + 1; // similar to above @end example -Expressions are handles to other more fundamental objects, that many -times contain other expressions thus creating a tree of expressions +Expressions are handles to other more fundamental objects, that often +contain other expressions thus creating a tree of expressions (@xref{Internal Structures}, for particular examples). Most methods on @code{ex} therefore run top-down through such an expression tree. For example, the method @code{has()} scans recursively for occurrences of @@ -1480,7 +1480,7 @@ bool ex::is_zero(); for checking whether one expression is equal to another, or equal to zero, respectively. -@strong{Warning:} You will also find a @code{ex::compare()} method in the +@strong{Warning:} You will also find an @code{ex::compare()} method in the GiNaC header files. This method is however only to be used internally by GiNaC to establish a canonical sort order for terms, and using it to compare expressions will give very surprising results.