function f26( q, za, aii, c, r, v, l ) {
	var aux1;
	var yyi;
	var aux;

	yyi = ( za * l ) + ( 2.0 * aii * l ) + l;
	aux1 = prangeVInf( sqrt(yyi / 2.0) * q, r );
	if ( aux1 === 0 ) {
		aux1 = 1.0e-37;
	}
	aux = ( c * ln(aux1) ) + ln(l) + ( (v / 2.0) * ln(v) ) +
		( -yyi * v / 4.0 ) + ( ( ( v / 2.0 ) - 1.0 ) * ln(yyi) ) -
		( ( v * LN_TWO ) + lngamma( v / 2.0 ) );
	if ( abs( aux ) >= 1.0e30 ) {
		return 0.0;
	}
	return exp( aux );
}
Evaluates a Gauss-Legendre quadrature.

@private
@param {number} q - quadrature point
@param {number} za - integral bound
@param {number} aii - integral bound
@param {number} c - integral upper bound
@param {number} r - relative error tolerance
@param {number} v - number of integration variables
@param {number} l - logarithm of the absolute value of the integral
@returns {number} integral value