python 绘制sinx

code

import turtle
import math

turtle.speed()
turtle.penup()
turtle.goto(-,  * math.sin((-/) *  * math.pi))
turtle.pendown()
turtle.color("red")
for x in range(-, ):

    turtle.goto(x,  * math.sin((x/) *  * math.pi))

turtle.color("black")
turtle.penup()
turtle.goto(-, -)
turtle.write("-2\u03c0", font=("黑体", ))
turtle.pendown()

turtle.penup()
turtle.goto(, )
turtle.write("2\u03c0", font=("黑体", ))
turtle.pendown()

turtle.penup()
turtle.goto(-, )
turtle.pendown()
turtle.goto(, )
turtle.write("x", font=("宋体",))
turtle.goto(, )
turtle.goto(, )
turtle.goto(, -)

turtle.penup()
turtle.goto(, -)
turtle.pendown()
turtle.goto(, )
turtle.write("y", font=("宋体",))
turtle.goto(-, )
turtle.goto(, )
turtle.goto(, )
turtle.done()