The option InputIsSmooth is only used by the commands CSM, and Euler. If the input ideal is known to define a smooth subscheme setting this option to true will speed up computations (it is set to false by defualt).
R = ZZ/32749[x_0..x_4]; |
I=ideal(random(2,R),random(2,R),random(1,R)); |
time CSM I |
time CSM(I,InputIsSmooth=>true) |
Note that one could, equivalently, use the command Chern instead in this case.
time Chern I |
The object InputIsSmooth is a symbol.