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# changeFlags(...,OneHomotopy=>...) -- strategy for moving solutions to a Schubert problem

- Usage:
    `changeFlags(...,OneHomotopy=>T)`
- Inputs:
  - T, a Boolean value, when true [default] it uses a single straight line homotopy, otherwise it makes a gradual change in the flags, one column at a time.

## Description

There are two strategies: when OneHomotopy is set to true (default) it uses straight line homotopies to change flags, but assumes the initial flags are generic.

When OneHomotopy is set to false, it makes gradual changes in the flags by changing one column at a time, and using only linear homotopies, but in this setting, it generates polynomial equations using all minors of the incidence conditions (thus is not very effective).

## Functions with optional argument named OneHomotopy:

- changeFlags(...,OneHomotopy=>...) -- strategy for moving solutions to a Schubert problem

## Further information

- Default value: true
- Function: changeFlags -- continue solutions of a Schubert problem to another instance
- Option key: OneHomotopy -- strategy for changing flags.

The source of this document is in /build/macaulay2-88fgJW/macaulay2-1.25.11+ds/M2/Macaulay2/packages/NumericalSchubertCalculus/doc.m2:563:0.