File: 1e22e5-G37.m2

package info (click to toggle)
macaulay2 1.21%2Bds-3
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 133,096 kB
  • sloc: cpp: 110,377; ansic: 16,306; javascript: 4,193; makefile: 3,821; sh: 3,580; lisp: 764; yacc: 590; xml: 177; python: 140; perl: 114; lex: 65; awk: 3
file content (31 lines) | stat: -rw-r--r-- 881 bytes parent folder | download | duplicates (3)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
recursionLimit=1000
needsPackage "NumericalSchubertCalculus"
needsPackage "NumericalAlgebraicGeometry"

-- this does not work (with either of the given seeds and either software)
SchPblm = randomSchubertProblemInstance( 
     {{1},{1},{2},{2},{2},{2},{2}} ,3,7); 
 
setRandomSeed 1 -- fails: "trackHomotopy: singularity encountered"

setRandomSeed 23 -- fails: "a solution does not fit the expected pattern (numerical error occurred)"            

setRandomSeed 23; 
setDefault(ErrorTolerance=>1e-12) -- fails

setRandomSeed 1; setDefault(Software=>BERTINI) --fails

-- this works (with M2engine but not BERTINI)
SchPblm = randomSchubertProblemInstance( 
     {{2},{2},{2},{2},{2},{1},{1}} ,3,7);

setRandomSeed 1; setDefault(Software=>M2engine)

elapsedTime S = solveSchubertProblem(SchPblm,3,7);

assert(#S == 26)

end

restart
load "NumericalSchubertCalculus/EXA/1e22e5-G37.m2"