A general geometry and calculus : including book I. of the general geometry, treating of loci in a plane; and an elementary course in the differential and integral calculus (1881)
Olney, Edward, 1827-1887 · New York : Sheldon and Co. · leaf 50
angle which the Hne makes with the axis ofordinates, since, in Fig. 21, the angle AHG = NHY =90° — NGX In this form, - isa … the distance on the axis of abscissas from the origin to where the Hne cuts it (AG), since the base of a right-angled triangle is equal to the perpendicular divided by the tangent of the angle at the base. 34:, CoR. A.—TJie Equation of a Hight TAne referredto oblique axes. If the axes are oblique,…
Geometry, Analytic · Calculus
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