restoring unrelated files

mathics/doc/documentation/1-Manual.mdoc

@@ -4,15 +4,15 @@
 \Mathics is a <url>:computer algebra
 system:https://en.wikipedia.org/wiki/Computer_algebra_system</url>. It is a free, open-source alternative to \Mathematica or the \Wolfram Language. However, \Mathics builds around and on top of the Python ecosystem of libraries and tools. So in a sense, you can think of it as a WMA front-end to the Python ecosystem of tools.
 
-\Mathics is free both as in "free beer" but also, more importantly, as in "freedom". \Mathics can be run locally. But to facilitate installation of the vast amount of software needed to run this, there is a <url>:docker image available on dockerhub: https://hub.docker.com/r/mathicsorg/mathics</url>.
+\Mathics is free both as in "free beer" but also, more importantly, as in "freedom". \Mathics can be run locally. But to facilitate installation of the vast amount of software need to run this, there is a <url>:docker image available on dockerhub: https://hub.docker.com/r/mathicsorg/mathics</url>.
 
 The programming language and built-in functions of \Mathics tries to match the \Wolfram Language, which is continually evolving changing.
 
 \Mathics is in no way affiliated or supported by \Wolfram. \Mathics will probably never have the power to compete with \Mathematica in industrial applications; it is a free alternative though. It also invites community development at all levels.
 
 See the <url>:installation instructions: https://mathics-development-guide.readthedocs.io/en/latest/installing/index.html</url> for the most recent instructions for installing from PyPI, or the source.
 
-For implementation details, please refer to the <url>:Developers Guide:https://mathics-development-guide.readthedocs.io/en/latest/</url>.
+For implementation details, plrease refer to the <url>:Developers Guide:https://mathics-development-guide.readthedocs.io/en/latest/</url>.
 
 <section title="Why try to recreate Wolfram Language?">
 \Mathematica is great, but it a couple of disadvantages.
@@ -82,7 +82,7 @@ While we always could use help, such as in Python programming, improving Documen
 <ul>
 <li>Ensure this document is complete and accurate. We could use help to ensure all of the Builtin functions described properly and fully, and that they have link to corresponding Wiki, Sympy, WMA and/or mpath links.
 Make sure the builtin summaries and examples clear and useful.</li>
-<li>We could use help in LaTeX styling, and going over this document to remove overfull boxes and things of that nature. We could also use help and our use of Asymptote. The are some graphics primitives such as for polyhedra that haven't been implemented. Similar graphics options are sometimes missing in Asymptote that we have available in other graphics backends.</li>
+<li>We could use help in LaTeX styling, and going over this document to remove overful boxes and things of that nature. We could also use help and our use of Asymptote. The are some graphics primitives such as for polyhedra that haven't been implemented. Similar graphics options are sometimes missing in Asymptote that we have available in other graphics backends.</li>
 
 <li>add another graphics backend: it could be a javascript library like jsfiddle</li>
 
@@ -226,7 +226,7 @@ The result of the previous query to \Mathics can be accessed by '%':
 
 <section title="Precision and Accuracy">
 
-\Mathics handles relative and absolute uncertainty in numerical quantities. The <em>precision</em> or relative accuracy, is set by adding a RawBackquote character ('`') and the number of digits of precision in the mantissa. For example:
+\Mathics handles relative and absolute uncertanties in numerical quantities. The <em>precision</em> or relative accuracy, is set by adding a RawBackquote character ('`') and the number of digits of precision in the mantissa. For example:
 
   >> 3.1416`3
    = 3.14

mathics/doc/latex/mathics.tex

@@ -80,7 +80,8 @@
 \definecolor{pythonstring}{rgb}{0,0.5,0}
 
 \title{
-    \includegraphics[height=0.1\linewidth]{mathics-title.pdf}
+    \includegraphics[height=0.1\linewidth]{logo-heptatom.pdf}
+    \includegraphics[height=0.08125\linewidth]{logo-text-nodrop.pdf}
 \\[.5em]
   {\LARGE\color{subtitle}\textit{\textmd{A free, open-source alternative to Mathematica}}}
   \par\textmd{\Large Mathics3 Core Version \MathicsCoreVersion}