Please note that the recommended version of Scilab is 2025.0.0. This page might be outdated.
See the recommended documentation of this function
integrate
integration of an expression by quadrature
Calling Sequence
x=integrate(expr,v,x0,x1 [,atol [,rtol]])
Arguments
- expr
Character string defining a Scilab expression.
- v
Character string, the integration variable name)
- x0
real number, the lower bound of integration
- x1
vector of real numbers, upper bounds of integration
- atol
real number (absolute error bound) Default value: 1.-8
- rtol
real number, (relative error bound) Default value: 1e-14
- x
vector of real numbers, the integral value for each
x1(i)
.
Description
computes : for
i=1:size(x1,'*')
Where is given by the expression
expr
.
The evaluation hopefully satisfies following claim for accuracy:
abs(I-x)<= max(atol,rtol*abs(I))
where
I
stands for the exact value of the integral.
Restriction
the given expression should not use variable names with a leading
%
.
Examples
<< intc | Differential Equations, Integration | intg >> |