in the single variable x. The graph of a univariate quadratic function is a parabola whose axis of symmetry is parallel to the y-axis, as shown at right. If the quadratic function is set equal to zero, then the result is a quadratic equation. The solutions to the univariate equation are called the roots of the univariate function. The bivariate case in terms of variables x and y has the form.
A gable is the generally triangular portion of a wall between the edges of a sloping roof. The shape of the gable and how it is detailed depends on the structural system being used (which is often related to climate and availability of materials) and aesthetic concerns. Thus the type of roof enclosing the volume dictates the shape of the gable.
A gable is the triangular wall formed by a sloping roof. The roof is not the gableâthe wall is the gable down to the roof line, but you generally need a gable roof to have a gable. It's common to name the triangular area made from a gambrel roof a gable, as well. Some definitions even include the end edges of the roof as part of the gable. When discussing gables with your architect or contractor, don't be shy about asking what their definition is. 1  For example, some people call the gable wall as the wall on the gable side right down to the foundation. Others rightly call the gable wall as that part of the siding between the slopes of the roof. In general, the distinguishing feature of the gable is its triangular shape. Origins of the Word Gable