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PHCpack :: startSystem

startSystem -- optional input for computation of mixed volume by solving a random coefficient system

Description

PUt startSystem=>true as an argument in the function mixedVolume to tell the method to use polyhedral homotopies. Polyhedral homotopies solve a system with the same Newton polytopes as the original system and with random complex coefficients. This random coefficient system can serve as a start system to solve the original input system.

Functions with optional argument named startSystem :

For the programmer

The object startSystem is a symbol.