document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1183351>Question 1183351</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Evaluate the logarithm using the change-of-base formula.  Rewrite the logarithm using natural logs, then evaluate on your calculator rounding to 3 decimal places<BR>\n" );
document.write( "log4(base)12.7 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #813622 by </B><A HREF=/tutors/aboutme.mpl?userid=Solver92311><B>Solver92311(821)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Solver92311><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=Solver92311><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=813622\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <font face=\"Times New Roman\" size=\"+2\">\r<BR>\n" );
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document.write( "MathLover1's solution to the problem is perfect; I'm only commenting to show you the most universally understood notation for plain text rendering of a logarithm function where the base must be specified:\r<BR>\n" );
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document.write( "log_b(x) is the correct way to render <IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\Large \log_b(x)\">.\r<BR>\n" );
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document.write( "In general, the underscore character indicates a subscript.  If the subscript consists of more than one character, enclose it in curly braces, thus:\r<BR>\n" );
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document.write( "x_{10} is understood to mean <IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\Large x_{10}\">\r<BR>\n" );
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document.write( "In the case of logs or other \"spelled out\" functions, such as trigonometry functions and their inverses, form the habit of enclosing the argument in parentheses.\r<BR>\n" );
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document.write( "log_4 12.7 is understandable, but log_4(12.7) is better.\r<BR>\n" );
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document.write( "																<BR>\n" );
document.write( "John<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE e^{i\pi}\ +\ 1\ =\ 0\"><BR>\n" );
document.write( "My calculator said it, I believe it, that settles it<BR>\n" );
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document.write( "From <https://www.algebra.com/cgi-bin/upload-illustration.mpl> <BR>\n" );
document.write( "I > Ø<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\Large \ \\r\"> </SPAN>\n" );
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