Sine cosine plot extension

Author: RBs4nt

senocoseno_plot4.py

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+# Moving the axes and adding a caption to the cosine sine grap
+
+import pylab as pl
+import numpy as np
+
+# Creates a figure of size 10x6 points, 80 points per inch
+# Changing figure to make it more horizontal
+pl.figure(figsize=(10, 6), dpi=80)
+
+# Creates a new subplot from a 1x1 grid
+pl.subplot(1, 1, 1)
+
+X = np.linspace(-np.pi, np.pi, 256, endpoint=True)
+C, S = np.cos(X), np.sin(X)
+
+# Cosine in blue, sine in red both with thicker lines and definition of names for each line in the graph
+pl.plot(X, C, color="blue", linewidth=2.5, linestyle="-", label="cosine")
+pl.plot(X, S, color="red",  linewidth=2.5, linestyle="-", label="sine")
+
+# Subtitle
+pl.legend(loc='upper left')
+
+# Sets the limits on x
+pl.xlim(-4.0, 4.0)
+
+# # moving the secondary axes
+ax = pl.gca()  
+ax.spines['right'].set_color('none')
+ax.spines['top'].set_color('none')
+ax.xaxis.set_ticks_position('bottom')
+ax.spines['bottom'].set_position(('data',0))
+ax.yaxis.set_ticks_position('left')
+ax.spines['left'].set_position(('data',0))
+
+# Sets the x marks
+pl.xticks([-np.pi, -np.pi/2, 0, np.pi/2, np.pi],
+          [r'$-\pi$', r'$-\pi/2$', r'$0$', r'$+\pi/2$', r'$+\pi$']) 
+          # Marker x showing only explicit essential values
+
+# Defines the limits in y
+#pl.ylim(-1.0, 1.0)
+
+# Sets the y-marks
+pl.yticks([-1, 0, +1],
+          [r'$-1$', r'$0$', r'$+1$'])
+          # Marker y showing only explicit essential values
+
+# Saves the figure using 72 dots per inch
+#pl.savefig("sencos.png", dpi=72)
+
+# Shows the result on the screen
+pl.show()