| DescriptionLogarithm derivative.svg | English: Graph of the logarithm and illustration of the derivative. Created usingpython. fromnumpyimportlinspace,logfrommatplotlib.pyplotimport*lineEQ=lambdak,a:log(a)+(k-a)/ax1=linspace(0,7,100)y1=log(x1)x2=linspace(-1.5,4,3)y2=lineEQ(x2,1.5)x3=[1.5,2.5,2.5]y3=[][0],1.5),lineEQ(x3[0],1.5),lineEQ(x3[1],1.5)]fig=figure(figsize=(5,3))ax=fig.add_subplot(111)fordirectionin["left","bottom"]:ax.spines[direction].set_position('zero')ax.spines[direction].set_smart_bounds(True)fordirectionin["right","top"]:ax.spines[direction].set_color('none')ax.xaxis.set_ticks_position('bottom')ax.yaxis.set_ticks_position('left')ax.grid(False)ax.set_xticks([0,1.5,3,4,5])ax.set_yticks([-2,-1,1])ax.set_ylim(-2.2,1.5)ax.set_xlim(-1,5.5)ax.plot(x1,y1,'g',linewidth=1.)ax.plot(x2,y2,'k',linewidth=1.)ax.plot(x3,y3,'k--',linewidth=1.)ax.plot(1.5,log(1.5),'ro')ax.text(5.5,.2,"x")ax.text(0.1,1.5,"y")ax.text(4,1,r"$f(x)=\ln(x)$")ax.text(2,.175,"1",fontsize=7)ax.text(2.6,.5,r"$f^'(x)=\frac{1}{x}$",fontsize=12)ax.minorticks_on()#fig.show()fig.savefig("Logarithm_derivative.svg",bbox_inches="tight",\pad_inches=.15) |
| Date | |
| Source | Own work |
| Author | Krishnavedala |
| Other versions | File:Logarithm_derivative.png |
 | Permission is granted to copy, distribute and/or modify this document under the terms of theGNU Free Documentation License, Version 1.2 or any later version published by theFree Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitledGNU Free Documentation License.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 15:25, 5 June 2011 | | 375 × 243(44 KB) | JohnBlackburne(talk |contribs) | Make text bigger and rearrange for readability |
| 11:44, 5 June 2011 |  | 375 × 243(32 KB) | Krishnavedala(talk |contribs) | {{Information |Description ={{en|1=Graph of the logarithm and illustration of the derivative. Created usingpython. <source lang="python"> from numpy import linspace,log from matplotlib.pyplot import * lineEQ = la |
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