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Better Root Finder [message #53400] Sat, 14 April 2007 21:55 Go to previous message
Max Watson is currently offline  Max Watson
Messages: 1
Registered: April 2007
Junior Member
IDL's fx_root seems very limited; when I want to find the root of say
x^3 - 8 with the initial guess vector [-1,-100,100], IDL returns a
complex number: ( -1.00000, 1.73205). Is there a way that
fx_root can be easily modified so that it can find the right answer
with a bad initial guess?

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