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#1 2011-08-12 00:29:27
- Agnishom
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Log
If Log p + Log q= Log (p+q)
Then what is the relationship between p & q?
'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'The whole person changes, why can't a habit?' -65
#2 2011-08-12 00:35:58
- bobbym
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Re: Log
Hi;
I am getting:
Take the exponential of both sides.
There may be other solutions!
In mathematics, you don't understand things. You just get used to them.
Probability is the most important concept in modern science, especially as nobody has the slightest notion what it means.
90% of mathematicians do not understand 90% of currently published mathematics.
#3 2011-08-12 01:17:52
- bob bundy
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Re: Log
hi Agnishom and bobbym,
What bobbym has said holds good whatever log base you are using providing all three logs are the same base throughout the equation.
Furthermore, as log is an increasing function I think bobbym's answer is the only one.
Bob
ps. also providing neither p nor q is equal to 1.
Last edited by bob bundy (2011-08-12 01:19:52)
You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei
#4 2011-08-12 23:01:54
- Agnishom
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Re: Log
What may b othr answers
'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'The whole person changes, why can't a habit?' -65
#5 2011-08-12 23:08:37
- bobbym
- Administrator
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Re: Log
Hi;
Some guy wrote:
There may be other solutions!
Bob does not think there are any others ( he has a point ) and I can not find any others. Maybe that statement was too cautious.
In mathematics, you don't understand things. You just get used to them.
Probability is the most important concept in modern science, especially as nobody has the slightest notion what it means.
90% of mathematicians do not understand 90% of currently published mathematics.
#6 2013-03-07 18:38:07
- Agnishom
- Super Member
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Re: Log
bobbym wrote:
How did you get rid of e on the second line RHS
'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'The whole person changes, why can't a habit?' -65
#8 2013-03-07 20:40:42
- anonimnystefy
- Real Member
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Re: Log
Hi Bob
The LaTeX command for that is \Leftrightarrow.
The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“A secret's worth depends on the people from whom it must be kept.” ― Carlos Ruiz Zafón
#10 2013-03-07 20:56:41
- anonimnystefy
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Re: Log
You need a big L to get the equivalence arrow.
The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“A secret's worth depends on the people from whom it must be kept.” ― Carlos Ruiz Zafón
#12 2013-03-07 22:19:32
- anonimnystefy
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Re: Log
You are welcome!
The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“A secret's worth depends on the people from whom it must be kept.” ― Carlos Ruiz Zafón
#13 2013-03-08 00:55:12
- Agnishom
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Re: Log
I understand now
Thanks bob bundy
Isn't thinkng about e a redundancy over here?
'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'The whole person changes, why can't a habit?' -65