equal
deleted
inserted
replaced
139 l, t = line.split() |
139 l, t = line.split() |
140 L.append(float(l)) |
140 L.append(float(l)) |
141 T.append(float(t)) |
141 T.append(float(t)) |
142 In []: L = array(L) |
142 In []: L = array(L) |
143 In []: T = array(T) |
143 In []: T = array(T) |
144 In []: Tsq = T*T |
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145 \end{lstlisting} |
144 \end{lstlisting} |
146 \end{frame} |
145 \end{frame} |
147 |
146 |
148 %% \begin{frame}[fragile] |
147 %% \begin{frame}[fragile] |
149 %% \frametitle{Interpolation \ldots} |
148 %% \frametitle{Interpolation \ldots} |
298 return sin(x)+x**2 |
297 return sin(x)+x**2 |
299 In []: quad(f, 0, 1) |
298 In []: quad(f, 0, 1) |
300 \end{lstlisting} |
299 \end{lstlisting} |
301 \begin{itemize} |
300 \begin{itemize} |
302 \item \typ{def} |
301 \item \typ{def} |
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302 \item name |
303 \item arguments |
303 \item arguments |
304 \item \typ{return} |
304 \item \typ{return} |
305 \end{itemize} |
305 \end{itemize} |
306 \end{frame} |
306 \end{frame} |
307 |
307 |
317 In []: f(0) |
317 In []: f(0) |
318 Out[]: 0.0 |
318 Out[]: 0.0 |
319 In []: f(1) |
319 In []: f(1) |
320 Out[]: 1.8414709848078965 |
320 Out[]: 1.8414709848078965 |
321 \end{lstlisting} |
321 \end{lstlisting} |
322 \end{frame} |
322 More on Functions later \ldots |
323 |
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324 |
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325 \begin{frame}[fragile] |
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326 \frametitle{Functions - Default Arguments} |
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327 \begin{lstlisting} |
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328 In []: def f(x=1): |
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329 return sin(x)+x**2 |
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330 In []: f(10) |
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331 Out[]: 99.455978889110625 |
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332 In []: f(1) |
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333 Out[]: 1.8414709848078965 |
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334 In []: f() |
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335 Out[]: 1.8414709848078965 |
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336 \end{lstlisting} |
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337 \end{frame} |
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338 |
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339 \begin{frame}[fragile] |
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340 \frametitle{Functions - Keyword Arguments} |
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341 \begin{lstlisting} |
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342 In []: def f(x=1, y=pi): |
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343 return sin(y)+x**2 |
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344 In []: f() |
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345 Out[]: 1.0000000000000002 |
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346 In []: f(2) |
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347 Out[]: 4.0 |
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348 In []: f(y=2) |
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349 Out[]: 1.9092974268256817 |
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350 In []: f(y=pi/2,x=0) |
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351 Out[]: 1.0 |
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352 \end{lstlisting} |
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353 \end{frame} |
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354 |
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355 \begin{frame}[fragile] |
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356 \frametitle{More on functions} |
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357 \begin{itemize} |
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358 \item Scope of variables in the function is local |
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359 \item Mutable items are \alert{passed by reference} |
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360 \item First line after definition may be a documentation string |
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361 (\alert{recommended!}) |
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362 \item Function definition and execution defines a name bound to the |
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363 function |
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364 \item You \emph{can} assign a variable to a function! |
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365 \end{itemize} |
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366 \end{frame} |
323 \end{frame} |
367 |
324 |
368 \begin{frame}[fragile] |
325 \begin{frame}[fragile] |
369 \frametitle{Quadrature \ldots} |
326 \frametitle{Quadrature \ldots} |
370 \begin{lstlisting} |
327 \begin{lstlisting} |
390 \item Keyword Arguments |
347 \item Keyword Arguments |
391 \end{itemize} |
348 \end{itemize} |
392 \item Quadrature |
349 \item Quadrature |
393 \end{itemize} |
350 \end{itemize} |
394 \end{frame} |
351 \end{frame} |
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352 |
395 \end{document} |
353 \end{document} |
396 |
354 |