I didn't *need* to have 0.04. This is just a command that actually came up
in real work.
I didn't want to alter it in any way lest it may be a genuine bug.
cs
On Monday, November 17, 2014 6:48:04 AM UTC-6, Emmanuel Charpentier wrote:
>
> Why 0.04 ? Th notebook says :
>
> S=(5^( x -1) == (0.04)^(2*x)).subs({0.04:1/25}).log().solve(x) ; S
>
> [x == log(5)/(2*log(25) + log(5))]
> bool(S[0].rhs()==1/5)
> True
>
>
> (The last step is easily done by mental computation ; this is only a
> check.).
>
> HTH,
>
> --
> Emmanuel Charpentier
>
> Le dimanche 16 novembre 2014 19:54:20 UTC+1, RRogers a écrit :
>>
>> Apparently the default solver doesn't do logarithms.
>> For the default try:
>> solve(log(5^( x -1)) == log((0.04)^(2*x)), x)
>>
>> [x == 8104022*log(5)/(8104022*log(5) + 52171681)]
>>
>>
>>
>>
>>
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