On exit: the Chebyshev coefficients of the integral
$q\left(x\right)$. (The integration is with respect to the variable
$x$, and the constant coefficient is chosen so that
$q\left({x}_{\mathrm{min}}\right)$ equals
qatm1). Specifically, element
$i\times {\mathbf{iaint1}}+1$ of
aintc contains the coefficient
${a}_{\mathit{i}}^{\prime}$, for
$\mathit{i}=0,1,\dots ,n+1$. A call of the routine may have the array name
aintc the same as
a, provided that note is taken of the order in which elements are overwritten when choosing starting elements and increments
ia1 and
iaint1: i.e., the coefficients,
${a}_{0},{a}_{1},\dots ,{a}_{i-2}$ must be intact after coefficient
${a}_{i}^{\prime}$ is stored. In particular it is possible to overwrite the
${a}_{i}$ entirely by having
${\mathbf{ia1}}={\mathbf{iaint1}}$, and the actual array for
a and
aintc identical.