NAGtrace(ZZ) -- set the trace level in NumericalAlgebraicGeometry package

Function: NAGtrace
Usage:

a = NAGtrace b
Inputs:
- an integer, b, the new level
Outputs:
- a, the old level

Description

Determines how talkative the procedures of NumericalAlgebraicGeometry are. The most meaningful values are:

0 -- silent
1 -- progress and timings
2 -- more messages than 1

The progress is displayed as follows:

. = regular solution found
S = singular solution (or encountered a singular point on the path)
I = a homotopy path diverged to infinity
M = minimum step bound reached

i1 : R = CC[x,y];

i2 : S = {x^2-1,y^2-1};

i3 : T = {x^2+y^2-1, x+y};

i4 : NAGtrace 1

o4 = 0

i5 : track(S,T,{(1,1),(1,-1),(-1,1),(-1,-1)})

.M.MSetup time: 0
Computing time:0

o5 = {{.707107, -.707107}, [M,t=.465282], {-.707107, .707107}, [M,t=.465282]}

o5 : List

Ways to use this method:

NAGtrace(ZZ) -- set the trace level in NumericalAlgebraicGeometry package

The source of this document is in NumericalAlgebraicGeometry/doc.m2:492:0.