#6803: Implement symbolic Kronecker delta and also make current signum (sgn)
symbolic
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Reporter: gmhossain | Owner:
Type: enhancement | Status: new
Priority: major | Milestone:
Component: symbolics | Keywords:
Reviewer: | Author:
Merged: |
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We should have a symbolic Kronecker delta in Sage.
Also, current implementation of signum (sgn) function
returns wrong answer for symbolic input.
{{{
sage: sgn(x)
1
sage: sgn(-x)
1
}}}
So we should make sgn() symbolic aware. Given, implementation of
these functions in new symbolics should be very similar to the existing
generalized function '''Dirac delta''' and '''Heaviside''', I am putting
them together here.
Also, ticket #777 should be closed down as Sign is already in Sage
and this ticket will further enhance it.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/6803>
Sage <http://sagemath.org/>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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