dirac - Dirac delta
Syntax
dirac(x)
Description
dirac(x) returns the Dirac
delta function of x.
The Dirac delta function, dirac, has the
value 0 for all x not equal to 0 and the value Inf for x =
0. Several Symbolic Math Toolbox functions return answers in terms
of dirac.
Example
dirac has the property that
for any function f and real number a.
For example:
syms x a
a = 5;
int(dirac(x-a)*sin(x),-inf, inf)
ans =
sin(5)
dirac also has the following relationship
to the function heaviside:
syms x;
diff(heaviside(x),x)
ans =
dirac(x)
See Also
heaviside
 | digits (sym) | | doc (mupadengine) |  |
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