On Monday, 1 May 2017 15:31:12 UTC-4, Dominique Laurain wrote:
>
> I wonder why you want to use the "abs()" function, when the "absolute
> value" function has no meaning for complex numbers.
>
The modulus of a complex number z is often called the absolute value of z
and is typeset as |z|. The
I am wanting to hand off a holomorphic function to an external library, but
the library only works with real numbers (operations with C++ doubles).
Thus I wish to have Sage compute functions u and v for which f(x+i y) =
u(x,y) + i v(x,y) such that u and v are expressed only in terms of
operatio
I think the Mathematica interface is still broken. I'm looking into what it
would take to fix it.
What kind of sage object are we talking about?
On Sunday, 21 December 2014 17:01:47 UTC-5, Shane Scott wrote:
>
> Am I correct in thinking the sage-mathematica interface is still broken?
> If tha
I'm on OS X Yosemite with Mathematica 10. I can't get Sage to talk to
Mathematica, i.e. the following fails:
sage: mathematica('Factor[x^2-1]')
However, it fails differently depending on the version of Sage. With 5.8 I
get:
TypeError: Unable to start mathematica
With 6.4.1 Sage appears to
ary 28, 2014 8:29:16 PM UTC-5, Robert Jacobson wrote:
>>
>> I am having difficulty using Piecewise(). For example, I can define the
>> following:
>> t = Piecewise([[(-oo, -1), 0*x^0], [(-1, 0), 1+x], [(0, 1), 1-x], [(1, oo
>> ), 0*x^0]], x)
>> but then evaluating
I am having difficulty using Piecewise(). For example, I can define the
following:
t = Piecewise([[(-oo, -1), 0*x^0], [(-1, 0), 1+x], [(0, 1), 1-x], [(1, oo),
0*x^0]], x)
but then evaluating t(-100) fails. I can modify the above to have a finite
domain:
t = Piecewise([[(-10, -1), 0*x^0], [(-1, 0
Setting xmin/xmax for parametric_plot doesn't seem to do anything, but
ymin/ymax work as expected. What am I doing wrong?
t = var('t')
parametric_plot( (cos(t), sin(t)), (t, 0, 2*pi), xmin=-2, xmax=2, ymin=-2,
ymax=2)
--
You received this message because you are subscribed to the Google Groups
