We can convert cartesian coordinates to polar coordinates and vice-versa using the following formulae The following figure shows the two coordinate systems in the same plane, which will help you understand the relationship between them better. Now that we understand the polar coordinate system and i...
Write a NumPy program to convert cartesian coordinates to polar coordinates of a random 10x2 matrix representing cartesian coordinates. Expected Output: [ 0.89225122 0.68774813 0.20392039 1.22093243 1.24435921 1.00358852 0.37378547 0.8534585 0.31999648 0.567451 ] ...
35. How to compute ((A+B)*(-A/2)) in place (without copy)? (★★☆) # 原地计算,不能拷贝 a = np.ones(6, dtype=int).reshape(2,3) b = np.ones(6, dtype=int).reshape(2,3)*2 b = a + b a = (-a)/2 a * b array([[-1.5, -1.5, -1.5], [-1.5, -1.5, -1.5]...
运行结果: 44. Consider a random 10x2 matrix representing cartesian coordinates, convert them to polar coordinates (★★☆) 1arr = np.random.randint(1,10,(10,2))2x =arr[:,0]3y = arr[:,1]4R = np.sqrt(x**2+y**2)5T =np.arctan2(y,x)6print(R)7print(T) 运行结果: [ 8.94427...
44. Consider a random 10x2 matrix representing cartesian coordinates, convert them to polar coordinates (★★☆) 给定表示笛卡尔坐标的一个10*2的随机矩阵,将其转换为极坐标 Z = np.random.random((10,2)) X,Y = Z[:,0], Z[:,1] R = np.sqrt(X**2+Y**2) T = np.arctan2(Y,X) pri...
44.Consider a random 10x2 matrix representing cartesian coordinates, convert them to polar coordinates (★★☆) Z = np.random.random((10,2)) X,Y = Z[:,0], Z[:,1] R = np.sqrt(X**2+Y**2) T = np.arctan2(Y,X) print(R) ...
flags.writeable = False # Z[0] =1 # ValueError: assignment destination is read-only """ Consider a random 10x2 matrix representing cartesian coordinates, convert them to polar coordinates (★★☆) 距离计算式是p=sqrt(x^2+y^2),角度计算式arctan(y/x) """ Z = np.random.random((10,2...
41. How to sum a small array faster than np.sum? 42. Consider two random array A and B, check if they are equal 43. Make an array immutable (read-only) 44. Consider a random 10x2 matrix representing cartesian coordinates, convert them to polar coordinates ...
44. Consider a random 10x2 matrix representing cartesian coordinates, convert them to polar coordinates (★★☆) (hint: np.sqrt, np.arctan2) 45. Create random vector of size 10 and replace the maximum value by 0 (★★☆) (hint: argmax) ...
44. Consider a random 10x2 matrix representing cartesian coordinates, convert them to polar coordinates (★★☆) 给定表示笛卡尔坐标的一个10*2的随机矩阵,将其转换为极坐标 代码语言:javascript 代码运行次数:0 运行 AI代码解释 Z = np.random.random((10,2)) X,Y = Z[:,0], Z[:,1] R = np...