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Determining if a context-free grammar generates all possible strings, or if it is ambiguous. Given two context-free grammars, determining whether they generate the same set of strings, or whether one generates a subset of the strings generated by the other, or whether there is any string at all that both generate.
For example, one hole might record the answer to a yes/no question on a survey, with the presence of a notch meaning "yes". More-complex data was encoded using a variety of schemes, often using a superimposed code which allows more distinct categories to be coded than the number of holes available.
A spectre is obtained by modifying the edges of this polygon as in the middle and right example. In May 2023 the same team (Smith, Myers, Kaplan, and Goodman-Strauss) posted a new preprint about a family of shapes, called "spectres" and related to the "hat", each of which can tile the plane using only rotations and translations. [ 12 ]
CRAN Task View: Time Series Analysis is a list describing many R (programming language) packages dealing with both unevenly (or irregularly) and evenly spaced time series and many related aspects, including uncertainty. MessyTimeSeries and MessyTimeSeriesOptim are Julia packages dedicated to incomplete time series.
E.g. a question where two lists are offered, one of terms and one of descriptions is often referred to as an EMI. Example of an EMI variant. This organelle stores the genetic information of a eukaryotic cell. This organelle synthesises polypeptides using information provided by mRNA. This organelle, found in plants, contains chlorophyll. List ...
The Cula-Malunkyovada Sutta, MN 63 [9] and 72 [10] contains a list of ten unanswered questions about certain views (ditthi): The world is eternal. The world is not eternal. The world is (spatially) infinite. The world is not (spatially) infinite. The being imbued with a life force is identical with the body.
Convicted of 34 felonies, liable for sexual abuse and impeached twice, Trump still finds himself breathtakingly close to retaking the White House.
Was there ever a collision of the Earth with another planet Theia, giving birth to the Moon? [1] There is compelling evidence, such as measures of a shorter duration of the Earth's rotation and lunar month in the past, pointing to a Moon much closer to Earth during the early stages of the Solar System.