## Some fourth-order nonlinear solvers with closed formulae for multiple roots.(English)Zbl 1189.65093

Summary: We present six new fourth-order methods with closed formulae for finding multiple roots of nonlinear equations. The first four of them require one-function and three-derivative evaluation per iteration. The last two require one-function and two-derivative evaluation per iteration. Several numerical examples are given to show the performance of the presented methods compared with some known methods.

### MSC:

 65H05 Numerical computation of solutions to single equations
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### References:

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