It's a bit unclear to me what you want, but have you tried
substituting your expressions, or writing a Python function
instead of a symbolic function gamma?
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2016-06-12 09:13:00 UTC+2, Sayantan Koley:
I'm writing square and multiply algorithm.
> but i need to store binary digits in sage.
> how to do?
>
Here is a way to get the binary digits of an integer.
sage: a = 41
sage: a.bits()
[1, 0, 0, 1, 0, 1]
You can also have a look at the S
Many of these expression shouldn't also simplify down to 0 just through
algebra, though the symbolic manipulator usually doesn't recognize that. I
try using using CC(gamma(2)), so that I can see if it's equal to 0, but it
tells me that it can't evaluate a symbolic expression numerically, even
t
I should add that moving the part where I assign values to the u's to above
the definition of gamma, like so:
reset()
var("G")
var('i')
G = 5
u = [SR("u_%i"%x) for x in [0..G-1]]
u[1] = -1
u[2]= -1
u[3]= -1
u[4]= -1
gamma(k) = (1/G)*sum(-(u[i])^(k-1)/(u[i]-1)^k for i in (1..G-1))
show(1/5 - 3*2
I should add that moving the part where I assign values to the u's to above
the definition of gamma, like so:
reset()
var("G")
var('i')
G = 5
u = [SR("u_%i"%x) for x in [0..G-1]]
u[1] = -1
u[2]= -1
u[3]= -1
u[4]= -1
gamma(k) = (1/G)*sum(-(u[i])^(k-1)/(u[i]-1)^k for i in (1..G-1))
show(1/5 - 3*2/5
Thanks for the help guys! :)
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> Is there a reason this is appearing in my post? I can't tell if this is a
> glitch or something.
>
It's a 'feature' of Google groups, that when you reply to a post in your
email (at least sometimes) then this happens, even if you change the
subject line
(see
https://groups.google.com/for
Hey everyone:
So, I start by making a symbolic function. Gamma(k) is the sum of some
variables, u_i. Generating the function by hand is difficult, so I was
hoping I could make it so that Sage generates the function and then I can
give values for the u_i's, and have it compute the value for me.
