fsolve accuracy
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John Mulvihill
on 17 Nov 2011
Commented: John Mulvihill
on 24 Apr 2014
Hi all,
I am fairly new to matlab so excuse my ignorance as this could be an easy problem.
I am using the fsolve function and it is working fine and it outputs my three parameters that I need. However all three numbers are limited to an accuracy of four decimal places which I would like to increase to 6 or even more.
Does anyone have any advice to help me improve the accuracy? This is a snapshot of the code...
Init_Guess = [0.05 0.02 0.0000406];
options=optimset('Display','iter','MaxIter',3000,'MaxFunEvals',3000, 'TolFun', 1.0e-12, 'TolX',1.0e-12);
Coeffs = fsolve(@Solution_1,Init_Guess,options)
As you can see with the Initial guess I am trying to force the code to increase the decimal places but it doesn't seem to want to do it.
Regards
John Mulvihill
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Accepted Answer
the cyclist
on 17 Nov 2011
My guess is that you are talking about what is displayed, as opposed to what is calculated. Try typing
>> format long
to see more digits in the output of the command window.
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More Answers (1)
Mahyar
on 24 Apr 2014
I have same problem too, and tried format long but it does not have any effect of the meaningful digits of results. Am I wrong?!
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