Scilab Function
Last update : 00/00/0000
integrate - integration by quadrature
Calling Sequence
- [x]=integrate(expr,v,x0,x1 [,ea [,er]])
Parameters
-
expr: external Scilab
-
v: string (integration variable)
-
x0,x1: real numbers (bounds of integration)
-
ea,er: real numbers (absolute error bound) Default value: 0
-
er: real number, (relative error bound) Default value: 1.d-8
Description
computes :
/x1
[
x = I f(v)dv
]
/x0
The evaluation hopefully satisfies following claim for accuracy:
abs(I-x)<= max(ea,er*abs(I)) where I stands for the
exact value of the integral.
Examples
integrate('sin(x)','x',0,%pi)
integrate(['if x==0 then 1,';
'else sin(x)/x,end'],'x',0,%pi)
See Also
intg, inttrap, intsplin, ode,