代码如下: func GetTriangleAreaByVector(x vector.Vector3,y vector.Vector3,z vector.Vector3) float64 { //根据三角形三个点坐标求面积 //先算三角形三个边的长度 a := vector.GetDistance(x,y) b := vector.GetDistance(x,z) c := vector.GetDistance(y,z) s := (a + b + c) / 2 area := math.Sq
""" 已知三角形的边长求他的面积和周长 Author:罗万财 Date:2017-3-3 """ import math a=float(input('a=')) b=float(input('b=')) c=float(input('c=')) if a+b>c and a+c>b and b+c>a: d=a+b+c e=(a+b+c)/2 f=math.sqrt(e*(e-a)*(e-b)*(e-c)) print('三
已知平面三点坐标A(x1, y1).B(x2, y2).C(x3, y3),三点定圆也就是三角形的中垂线交点, //平面三点定位算法 function locate(x1, y1, x2, y2, x3, y3) { var a, b; a = (y2 - y1) / (x2 - x1); b = y1 - a * x1; var xMiddle = (x1 + x2) / 2; var yMiddle = (y1 + y2) / 2; var c, lastX, lastY; if (a !=