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LambertW function
11-07-2020, 08:41 AM (This post was last modified: 11-10-2020 08:26 AM by Stevetuc.)
Post: #2
RE: LambertW function
Simplified the code and change to fsolve:

Result for lmb(-1.78) in home or cas:


Edit: add initial guess of 0 to avoid terminal screen in cas. This forces going direct to iterative solver rather than first trying and failing with bisection solver.
Edit: it doesn't fail with Bisectional solver. The cas terminal screen is just for information:
Quote:Solving by bisection with change of variable x=tan(t) and t=-1.57..1.57. Try fsolve(equation,x=guess) for iterative solver or fsolve(equation,x=xmin..xmax) for bisection.
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Messages In This Thread
LambertW function - Stevetuc - 05-17-2020, 08:48 AM
RE: LambertW function - Stevetuc - 11-07-2020 08:41 AM
RE: LambertW function - Albert Chan - 11-07-2020, 11:57 AM
RE: LambertW function - Stevetuc - 11-07-2020, 01:50 PM

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