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42 \typ{linspace} returns array of length \typ{num}, for which \typ{x[0] = start} and \typ{x[num-1] = stop} \\ |
42 \typ{linspace} returns array of length \typ{num}, for which \typ{x[0] = start} and \typ{x[num-1] = stop} \\ |
43 \emph{Please note indices of array starts from zero(0)} |
43 \emph{Please note indices of array starts from zero(0)} |
44 |
44 |
45 \subsection{plot} |
45 \subsection{plot} |
46 \typ{In []: plot(X, Y)}\\ |
46 \typ{In []: plot(X, Y)}\\ |
47 For given arrays of equal length(above case X and Y), \typ{plot} plots the correspoding *x* and *y* pairs taken from X and Y. |
47 For given arrays of equal length(above case X and Y), \typ{plot} plots the corresponding *x* and *y* pairs taken from X and Y. |
48 |
48 |
49 \subsection{Colors of plots} |
49 \subsection{Colors of plots} |
50 \typ{In []: plot(y, sin(y), 'g')}\\ |
50 \typ{In []: plot(y, sin(y), 'g')}\\ |
51 Plots graph with green color. Other options available are: |
51 Plots graph with green color. Other options available are: |
52 \begin{lstlisting} |
52 \begin{lstlisting} |
63 \typ{In []: plot(x, cos(x), 'r', linewidth=2)}\\ |
63 \typ{In []: plot(x, cos(x), 'r', linewidth=2)}\\ |
64 Plots the line with linewidth = 2 |
64 Plots the line with linewidth = 2 |
65 \subsection{label and title} |
65 \subsection{label and title} |
66 \typ{In []: xlabel('Length') #sets *x* axis label to Length}\\ |
66 \typ{In []: xlabel('Length') #sets *x* axis label to Length}\\ |
67 \typ{In []: ylabel('Time') #sets *y* axis label to Time.}\\ |
67 \typ{In []: ylabel('Time') #sets *y* axis label to Time.}\\ |
68 \typ{In []: title('Sinusoids') #sets title of plot}\\ |
68 \typ{In []: title('Sinusoid') #sets title of plot}\\ |
69 \\ |
69 \\ |
70 \textbf{Additionally}\\ |
70 \textbf{Additionally}\\ |
71 Pylab accepts TeX equation expressions in any text expression. To get something like:\\ |
71 Pylab accepts TeX equation expressions in any text expression. To get something like:\\ |
72 $\sigma_i=15$ \\ |
72 $\sigma_i=15$ \\ |
73 on title of figure use: |
73 on title of figure use: |
76 \end{lstlisting} |
76 \end{lstlisting} |
77 Same way one can have TeX expression on xlabel, ylabel etc. |
77 Same way one can have TeX expression on xlabel, ylabel etc. |
78 |
78 |
79 \subsection{legends} |
79 \subsection{legends} |
80 \typ{In []: legend('sin(x)',loc=center)} \\ |
80 \typ{In []: legend('sin(x)',loc=center)} \\ |
81 Placec a legend on the current plot at location *loc*.\\ |
81 Place a legend on the current plot at location *loc*.\\ |
82 Apart from \typ{center}, some other \typ{loc} which can be specified are: |
82 Apart from \typ{center}, some other \typ{loc} which can be specified are: |
83 \begin{lstlisting} |
83 \begin{lstlisting} |
84 'best' |
84 'best' |
85 'right' |
85 'right' |
86 'upper right' |
86 'upper right' |