<HTML><BODY style="word-wrap: break-word; -khtml-nbsp-mode: space; -khtml-line-break: after-white-space; ">Glassy:<DIV><BR class="khtml-block-placeholder"></DIV><DIV>I believe you have to use MPFR, unless you plan to write the code into the GMP library. MPFR worked well for me. </DIV><DIV><BR><DIV> <SPAN class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><SPAN class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><DIV>Blake Huff</DIV><DIV><A href="mailto:stangmechanic@gmail.com">stangmechanic@gmail.com</A></DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>"The CH-47D: Because anything else is just a sling load"</DIV><DIV><BR class="khtml-block-placeholder"></DIV></SPAN><BR class="Apple-interchange-newline"></SPAN><SPAN></SPAN><SPAN class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><BR class="Apple-interchange-newline"></SPAN> </DIV><BR><DIV><DIV>On Oct 2, 2006, at 3:47 PM, glassy wrote:</DIV><BR class="Apple-interchange-newline"><BLOCKQUOTE type="cite"><DIV>how can we find the logarithm of a big number using GMP ? there is no any function in the manual about logarithms. i know that the Log is the exponent in which 10 as an example is raised to obtain the number in question<BR>but i can't figure out how to use the available functions of GMP to calculate the logarithms.<BR>glassy</DIV> <DIV> </DIV><DIV> <BR class="khtml-block-placeholder"></DIV><HR size="1">Get your email and more, right on the <A href="http://us.rd.yahoo.com/evt=42973/*http://www.yahoo.com/preview"> new Yahoo.com</A><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">_______________________________________________</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">gmp-discuss mailing list</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><A href="mailto:gmp-discuss@swox.com">gmp-discuss@swox.com</A></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><A href="https://gmplib.org/mailman/listinfo/gmp-discuss">https://gmplib.org/mailman/listinfo/gmp-discuss</A></DIV> </BLOCKQUOTE></DIV><BR></DIV></BODY></HTML>