i1 : printingPrecision = 2
o1 = 2
|
i2 : R = RR_100
o2 = RR
100
o2 : RealField
|
i3 : M = 10*random(R^3,R^10)
o3 = | 9.1 7.8 8.5 6.4 5 1.2 2.1 8.9 .52 7.6 |
| 3.4 .02 2.8 8 4.8 .084 6.5 1.7 8.2 1.5 |
| 4.6 9.1 7.1 6.2 5 .49 6.3 8.8 3.9 2.7 |
3 10
o3 : Matrix R <--- R
|
i4 : norm M
o4 = 9.13067512756169442253529882532
o4 : RR (of precision 100)
|
i5 : norm_(numeric_20 infinity) M
o5 = 9.13068
o5 : RR (of precision 20)
|
i6 : norm {3/2,4,-5}
o6 = 5
|
The norm of a polynomial is the norm of the vector of its coefficients.