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Mathematica Sessions
Mathematica provides a uniquely powerful interactive environment for building up arbitrarily complex computations, under convenient interactive or programmatic control.
Reference
Components of Mathematica
Kernel — core computational engine
Front end — notebook interface system
Executing Computations
Ctrl+Shift+Enter — evaluate selection in place
expr; — evaluate expression, but do not print the result
(= at beginning of input) — use free-form linguistic input
Session History »
% — most recent output expression (%%, %%%, ... for earlier outputs)
%n — n
output expression
Control+L — copy down an input line (Insert ► Input from Above)
Getting Help
F1 — bring up help about a function
?name — give information about functions, symbols, etc.
Aborting
Alt+. — abort a running calculation (Evaluation ► Abort Evaluation)
Evaluation ► Quit Kernel — quit the kernel, keeping the front end running
Messages »
Off — switch off a message or a group of messages
Quiet — run a computation "quietly" without outputting messages
Why the Beep? ▪ Why the Coloring?
Session Information »
Directory — current directory
Names — names of known symbols
Notebooks ▪ MemoryInUse ▪ SystemInformation ▪ DateString ▪ ...
Session Customization »
Edit ► Preferences — set global front end preferences
Format ► Stylesheet — pick the stylesheet for a notebook
Format ► Option Inspector — set options for notebooks
$Post ▪ $Path ▪ $CharacterEncoding ▪ $TimeZone ▪ $RecursionLimit ▪ ...
Kernels & Contexts
Evaluation ► Kernel Configuration Options — set up additional local or remote kernels
Evaluation ► Notebook's Kernel — choose the kernel to connect to
Evaluation ► Notebook's Default Context — define scope of symbols
