i1 : printingPrecision = 2
o1 = 2
|
i2 : R = RR_100
o2 = RR
100
o2 : RealField
|
i3 : M = 10*random(R^3,R^10)
o3 = | 3.6 .83 3.7 4.1 3.1 6.6 7.6 7.9 9.1 7.5 |
| 3.7 4.6 7.5 2.2 4.6 .4 3.9 9.9 3.1 6 |
| 3.8 9.3 7 6.8 7.7 7.4 1.1 2.6 9.2 5.3 |
3 10
o3 : Matrix R <--- R
|
i4 : norm M
o4 = 9.94198576913338442661738649105
o4 : RR (of precision 100)
|
i5 : norm_(numeric_20 infinity) M
o5 = 9.94199
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.