How to make the same two expressions
- To: mathgroup at smc.vnet.net
- Subject: [mg119572] How to make the same two expressions
- From: Mariano Pierantozzi <mariano.pierantozzi at gmail.com>
- Date: Fri, 10 Jun 2011 06:39:53 -0400 (EDT)
Hi everyone, i've this problem with Mathemtica: i've got 2 expression depending on a and b: expr1= -1.0019 - 1. Log[0.00190438 - 0.0249519 b] + (0.000040093 a Log[0.152644/(0.152644 + 2 b)])/b expr2=-1.00004 - 1. Log[0.0000378969 - 0.0249519 b] + (0.000040093 a Log[0.0030376/(0.0030376 + 2 b)])/b I want to make the same this two expressions. The problem is that if i try to solve this is one equation in two parameter: a and b. So i think to put inside some value of a and b so i make equal the two expression less than 10^-12 (for example) I've to do a list of value: b can vary beetwen -0.0015188 < b < 0.0015188 (the domain of logarithmic function) and a must vary for example -2000 to 2000. I can not find a waydo it. I try with list, and put the value inside, but i've some problem. if anyone can help I would be grateful... Thank you! Mariano Pierantozzi PhD student
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