Utilities

Data Type Management

promote_arg_dtypes(*args)	Promotes args to a common inexact type.
check_shapes_are_equal(array1, array2)	Raise an error if the shapes of the two arrays do not match.
canonicalize_dtype(dtype)	Wrapper function on dtypes.canonicalize_dtype with None handling
promote_to_complex(arg)	Promotes an argument to complex type
promote_to_real(arg)	Promotes an argument to real type

System Information

platform	str(object=’’) -> str str(bytes_or_buffer[, encoding[, errors]]) -> str
is_cpu()	Returns True if the code is running on a CPU platform
is_gpu()	Returns True if the code is running on a GPU platform
is_tpu()	Returns True if the code is running on a TPU platform
nbytes_live_buffers()	Returns the number of bytes consumed by the live buffers

2D Geometry

Points and Vectors

point2d(x, y)	A point in 2D vector space
vec2d(x, y)	A vector in 2D vector space

Transformations

rotate2d_cw(theta)	Construct an operator that rotates a 2D vector by angle :math:` heta` clock-wise
rotate2d_ccw(theta)	Construct an operator that rotates a 2D vector by angle :math:` heta` counter-clock-wise
reflect2d(theta)	Construct an operator that reflects a 2D vector across a line defined at angle :math:` heta/2`