On Jun 10, 2010, at 12:22 PM, Christian Stump wrote:
m=[0.6158, 0.5893, 0.5682, 0.51510, 0.4980, 0.4750, 0.5791,
0.5570,0.5461, 0.4970, 0.4920, 0.4358, 0.422, 0.420]
m.count
len(m) does the job, you should probably look into the tutorial at
http://www.sagemath.org/doc/tutorial/ for this kind of questions...
m.count is a function returning the number of times some element
appears in the list, so [1,2,3,2,2,4].count(2) returns 3
Another similar thing, i want to multiply the all the elements for
10^-6
if you want to apply a function to every element in a list, you can do
that by [ f(i) for i in your_list ].
e.g., [ 2*i for i in [1,2,3] ] returns 2,4,6
Or, you might want an actual vector.
sage: m = vector([0.6158, 0.5893, 0.5682, 0.51510, 0.4980, 0.4750,
0.5791, 0.5570,0.5461, 0.4970, 0.4920, 0.4358, 0.422, 0.420])
sage: len(m)
14
sage: m * 10^-6
(6.15800000000000e-7, 5.89300000000000e-7, 5.68200000000000e-7,
5.15100000000000e-7, 4.98000000000000e-7, 4.75000000000000e-7,
5.79100000000000e-7, 5.57000000000000e-7, 5.46100000000000e-7,
4.97000000000000e-7, 4.92000000000000e-7, 4.35800000000000e-7,
4.22000000000000e-7, 4.20000000000000e-7)
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