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import random
import numpy as np
def random_points ( ) :
x = [ ]
y = [ ]
for i in range ( 20 ) :
x_ = random . uniform ( 0 , 1000 ) # 生成随机浮点数
y_ = random . uniform ( 0 , 1000 ) # 生成随机浮点数
x . append ( x_ ) # 加入列表
y . append ( y_ )
x = np . array ( x ) # 列表转数组
y = np . array ( y )
arr = np . array ( list ( zip ( x , y ) ) ) # 将两个一维数组拼接成二维数组
return arr
# if __name__ == '__main__':
# arr = random_points()
# print(arr)
def compute_curveData ( num , step , coefficient ) : # coefficient代表二次函数系数，
def quadratic_function ( x ) : # 构造二次函数y = a * X^2 + b * X + C
return coefficient [ 0 ] * x * * 2 + coefficient [ 1 ] * x + coefficient [ 2 ]
x_values = np . arange ( 0 , num , step )
y_values = quadratic_function ( x_values ) # 调用quadratic_function(x)函数得到y值
curve_data = np . column_stack ( ( x_values , y_values ) ) # 将两个一维数组堆叠成二维数组，形成(x,y)的形式
return curve_data
if __name__ == ' __main__ ' :
coefficient = [ 1 , 2 , 3 ]
ans = compute_curveData ( 1000 , 250 , coefficient )
print ( ans )
