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-rw-r--r--Master/texmf-dist/doc/generic/pgf/text-en/pgfmanual-en-math-design.tex11
1 files changed, 6 insertions, 5 deletions
diff --git a/Master/texmf-dist/doc/generic/pgf/text-en/pgfmanual-en-math-design.tex b/Master/texmf-dist/doc/generic/pgf/text-en/pgfmanual-en-math-design.tex
index d63d506db3a..e29fb81d9b7 100644
--- a/Master/texmf-dist/doc/generic/pgf/text-en/pgfmanual-en-math-design.tex
+++ b/Master/texmf-dist/doc/generic/pgf/text-en/pgfmanual-en-math-design.tex
@@ -80,18 +80,19 @@ different layers:
Currently, the mathematical algorithms are all implemented in \TeX.
This poses some intriguing programming challenges as \TeX{} is a
-typesetting language not a mathematical one, and as with any
-programming language, there is a trade-off between accuracy and
-efficiency. If you find the level of accuracy insufficient for you
+language for typesetting, rather than general mathematics,
+and as with any programming language, there is a trade-off between
+accuracy and efficiency.
+If you find the level of accuracy insufficient for you
purposes, you will have to replace the algorithms in the
implementation layer.
All the fancy mathematical ``bells-and-whistles'' that the parser
provides, come with an additional processing cost, and in some
instances, such as simply setting a length to |1cm|, with no other
-operations involved, the addition processing time is undesirable.
+operations involved, the additional processing time is undesirable.
To overcome this, the following feature is implemented: when no
-mathematical operations are required, the value in \meta{expression}
+mathematical operations are required, an expression
can be preceded by |+|. This will bypass the parsing process and the
assignment will be orders of magnitude faster. This feature
\emph{only} works with the macros for setting registers described in