ASKSAGE: Sage Q&A Forum - Individual question feedhttp://ask.sagemath.org/questions/Q&A Forum for SageenCopyright Sage, 2010. Some rights reserved under creative commons license.Fri, 20 Mar 2015 02:35:36 -0500Why can Sage solve one log equation, but not another with only different values?http://ask.sagemath.org/question/26237/why-can-sage-solve-one-log-equation-but-not-another-with-only-different-values/ solve(3 == 586 * 0.2 ^ x, x)
[x == log(586/3)/log(5)] // Numerical: 3.27736003989833
solve(3 == 586 * 0.99557 ^ x, x)
[100000^x == 586/3*99557^x] // Wat???
Why is it not capable of solving the second equation?
Math tells us there is a solution and that it is:
log(3/586) / log(0.99557) = 1188.03958878842Wed, 18 Mar 2015 04:00:47 -0500http://ask.sagemath.org/question/26237/why-can-sage-solve-one-log-equation-but-not-another-with-only-different-values/Comment by rws for <pre><code>solve(3 == 586 * 0.2 ^ x, x)
[x == log(586/3)/log(5)] // Numerical: 3.27736003989833
solve(3 == 586 * 0.99557 ^ x, x)
[100000^x == 586/3*99557^x] // Wat???
</code></pre>
<p>Why is it not capable of solving the second equation?
Math tells us there is a solution and that it is:</p>
<pre><code>log(3/586) / log(0.99557) = 1188.03958878842
</code></pre>
http://ask.sagemath.org/question/26237/why-can-sage-solve-one-log-equation-but-not-another-with-only-different-values/?comment=26263#post-id-26263Reported as http://trac.sagemath.org/ticket/18006Fri, 20 Mar 2015 02:35:36 -0500http://ask.sagemath.org/question/26237/why-can-sage-solve-one-log-equation-but-not-another-with-only-different-values/?comment=26263#post-id-26263