在Sympy中,該函數is_tangent()用於檢查給定的線是否與給定的圓相切。
用法:  Circle().is_tangent(line)
返回: True:if line is tangent to circle, otherwise False.
範例1:
# import sympy and geometry module 
from sympy import * 
from sympy.geometry import * 
  
x = Point(0, 0) 
  
# making line with given points 
l = Line(Point(5, -5), Point(5, 5)) 
  
# making circle with Circle() of  
# radius 5 and using is_tangent() 
isTangent = Circle(x, 5).is_tangent(l) 
  
print(isTangent)輸出:
True
範例2:
# import sympy and geometry module 
from sympy import * 
from sympy.geometry import * 
  
x = Point(0, 0) 
y = Point(1, 1) 
  
# making line with given points 
l = Line(x, y) 
  
# making circle with Circle() of radius 5 and using is_tangent() 
isTangent = Circle(x, 5).is_tangent(l) 
  
print(isTangent)輸出:
False
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