UTF-16编码中,起始的2^16码点被表现为一个16-bit编码单元,这就是所谓的基本多语言面(Basic Multilingual Plane,简称BMP)。任何超出这个范围的码点都不能表现为16-bit,这些码点被认为处于补充平面(supplementary plane)中。为解决这个问题,UTF-16引入了代理编码对(surrogate pairs)的概念,用两个16-bit的编码单元...
Ah, now we are venturing into the not-so-pretty underbelly of the gradient. Finding the maximum in regular (single variable) functions means we find all the places where the derivative is zero: there is no direction of greatest increase. If you recall, the regular derivative will point tolo...
A scatter plot is a graph that uses Cartesian coordinates to display values for two variables as dots or points on a coordinate plane. Each dot represents a single data point, and the dot’s position depends on the values of the two variables....
Due to the antiferromagnetic alignment of the chains the local coordinate systems depend on the choice of the chain. a Cubic axes x, y, z. They correspond to the conventional Kitaev coordinates. The glide plane perpendicular to the crystallographic b-axis is visible, as well as the two bonds...
Stochastic backscatter in a subgrid-scale model: plane shear mixing layer. Phys. Fluids A 2, 297–299 (1990). Article ADS Google Scholar Debussche, A., Dubois, T. & Temam, R. The nonlinear Galerkin method: a multiscale method applied to the simulation of homogeneous turbulent flows. ...
We have used the terms camera pose and robot pose interchangeably; both mean location of the robot in a 3D coordinate frame.What is Visual SLAM?When we use a camera as input for a SLAM algorithm, it’s called Visual SLAM. If a single camera is used, it’s known as Monocular Visual ...
At ArcGIS 9.3, the Buffer tool included the functionality to produce geodesic buffers. To perform geodesic buffering with the Buffer tool, these criteria must be met: The input feature class must be a point or multipoint dataset. The input feature class must have a geographic coordinate system....
The Detector Polar has a radial size of 10mm. The Z coordinate of the orange plane is at 5mm = 10 x cos (60 degrees). The “polar” circle has a radius of 8.66mm (10 x sin (60 degrees)). On that circle, we can see different azimuthal angles. Let’s say the azimuthal angle is...
Two vectors determine a plane, and the cross product points in a direction different from both (source): Here’s the problem: there’s two perpendicular directions. By convention, we assume a “right-handed system” (source): If you hold your first two fingers like the diagram shows, your...
Unique triad constraint: This ensures that the coordinate systems of both gears are still unique and well defined. It is particularly useful for planetary gears. For a line contact model, one more constraint is added to restrict the relative rotation about a line joining the two gear centers. ...