?? mathmake.c
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#include <stdio.h>#include <math.h>#define scale 1024int basis[91];int cost[360];main (void){ int i; printf ("#define costScale %d\n", scale); printf ("int cost[] = {\n "); for (i = 0; (i <= 90); i++) { basis[i] = cos ((double) i * .0174532925) * scale; } for (i = 0; (i < 90); i++) { printf ("%d,\n ", cost[i] = basis[i]); } for (i = 90; (i < 180); i++) { printf ("%d,\n ", cost[i] = -basis[180 - i]); } for (i = 180; (i < 270); i++) { printf ("%d,\n ", cost[i] = -basis[i - 180]); } for (i = 270; (i < 359); i++) { printf ("%d,\n ", cost[i] = basis[360 - i]); } printf ("%d\n", cost[359] = basis[1]); printf ("};\n"); printf ("#define sintScale %d\n", scale); printf ("int sint[] = {\n "); for (i = 0; (i < 360); i++) { int val; val = cost[(i + 270) % 360]; if (i != 359) { printf ("%d,\n ", val); } else { printf ("%d\n", val); } } printf ("};\n");}?? 快捷鍵說明
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