# New PDF release: A Crash Course in Mathematica

By Stephan Kaufmann

ISBN-10: 3034875894

ISBN-13: 9783034875899

ISBN-10: 3764361271

ISBN-13: 9783764361273

"A Crash direction in Mathematica" is a compact advent to this system Mathematica, that's popular in arithmetic, in addition to within the normal and engineering sciences.

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Out[n]). % indicates the last output cell, %% indicates the one before the last, etc. In[19):= 2% Out[19)= 2f In[20):= Out[20)= % * %17 2bf • The Order of Evaluation The order of evaluation does not need to be from top to bottom; cells may also be evaluated several times. 4) has changed or if references to output cells are no longer correct. • Suppressing or Shortening the Output If you add ; to the end of an expression, Mathematica suppresses the display of the output. It gets evaluated nonetheless: 41 The Basics In[21]:= a In[22]:= % Out[22]= a2 A 2; This is useful for calculations with huge results where the formatting of an output of several pages takes a lot of time.

A In[45]:= Expand[(a+b) "10] Out[45]= a 10 + 10 a 9 b + 45 a 8 b 2 + 120 a 7 b 3 + 210 a 6 b 4 + 252 as b S + 210 a 4 b 6 + 120 a 3 b 7 + 45 a 2 b 8 + 10 a b 9 + b 10 As an alternative we can also select the formula and apply the function Expand [_] from the palette AlgebraicManipulation. The cell is evaluated "on location" and (a+b)"10 changes into: aiD + 10 a 9 b + 45 as b 2 + 120 a 7 b 3 + 210 a 6 b' + 252 as b S + 210 a' b 6 + 120 a 3 b 7 + 45 a 2 b S + 10 a b 9 + biD Try this yourself. One of the most favorite functions is Simplify.

Solve: :verif : Potential solution {x[t] ~ComplexInfinity} cannot be verified automatically. Verification may require use of limits. Solve: :ifun: Inverse functions are being used by Solve, so some solutions may not be found. Solve: :verif : Potential solution {x[t] ~ComplexInfinity} cannot be verified automatically. Verification may require use of limits. General: :stop : Further output of Solve: :verif will be suppressed during this calculation. Solve: :ifun: Inverse functions are being used by Solve, so some solutions may not be found.

### A Crash Course in Mathematica by Stephan Kaufmann

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