求所有的满足条件的三角形的三边长

〇〇

面积是周长根号2倍的海轮三角形 SQL> c/16/8 3* where power(a.n+b.n+c.n,2)=(a.n+b.n+c.n)*(a.n-b.n+c.n)*(a.n+b.n-c.n)*(-a.n+b.n+c.n)/8 SQL> / N N N ------------ ------------ ------------ 6 6 4 9 6 5 11 9 4 Elapsed: 00:00:00.21

〇〇

面积是周长2倍 SQL> c/64/32 3* where power(a.n+b.n+c.n,2)=(a.n+b.n+c.n)*(a.n-b.n+c.n)*(a.n+b.n-c.n)*(-a.n+b.n+c.n)/32 SQL> / N N N ------------ ------------ ------------ 11 10 9 12 12 8 18 12 10 18 17 7 19 14 9 22 18 8 33 18 17 33 30 7 34 21 15 38 27 13 43 33 12 11 rows selected. 面积是周长4倍 SQL> c/4/64 3* where power(a.n+b.n+c.n,2)=(a.n+b.n+c.n)*(a.n-b.n+c.n)*(a.n+b.n-c.n)*(-a.n+b.n+c.n)/64 SQL> / N N N ------------ ------------ ------------ 15 14 13 20 16 12 24 15 15 26 24 10 30 25 11 34 20 18 37 26 15 39 35 10 40 30 14 41 40 9 10 rows selected. Elapsed: 00:00:00.43