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static const char SCCSID[]="@(#)PJ_august.c 4.1 94/02/15 GIE REL";
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PROJ_HEAD(august, "August Epicycloidal") "\n\tMisc Sph, no inv.";
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#define M 1.333333333333333
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FORWARD(s_forward); /* spheroid */
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double t, c1, c, x1, x12, y1, y12;
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c1 = sqrt(1. - t * t);
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c = 1. + c1 * cos(lp.lam *= .5);
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x1 = sin(lp.lam) * c1 / c;
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xy.x = M * x1 * (3. + (x12 = x1 * x1) - 3. * (y12 = y1 * y1));
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xy.y = M * y1 * (3. + 3. * x12 - y12);
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FREEUP; if (P) pj_dalloc(P); }
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ENTRY0(august) P->inv = 0; P->fwd = s_forward; P->es = 0.; ENDENTRY(P)