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List comprehension is a syntactic construct available in some programming languages for creating a list based on existing lists. It follows the form of the mathematical set-builder notation (set comprehension) as distinct from the use of map and filter functions.
Here, the list [0..] represents , x^2>3 represents the predicate, and 2*x represents the output expression.. List comprehensions give results in a defined order (unlike the members of sets); and list comprehensions may generate the members of a list in order, rather than produce the entirety of the list thus allowing, for example, the previous Haskell definition of the members of an infinite list.
Skimming is a process of speed reading that involves visually searching the sentences of a page for clues to the main idea or when reading an essay, it can mean reading the beginning and ending for summary information, then optionally the first sentence of each paragraph to quickly determine whether to seek still more detail, as determined by the questions or purpose of the reading.
The list comprehension will immediately create a large list (with 78498 items, in the example, but transiently creating a list of primes under two million), even if most elements are never accessed. The generator comprehension is more parsimonious.
Readability is the ease with which a reader can understand a written text.The concept exists in both natural language and programming languages though in different forms. In natural language, the readability of text depends on its content (the complexity of its vocabulary and syntax) and its presentation (such as typographic aspects that affect legibility, like font size, line height ...
Comprehension specifically is a "creative, multifaceted process" that is dependent upon four language skills: phonology, syntax, semantics, and pragmatics. [6] Reading comprehension is a part of literacy. Some of the fundamental skills required in efficient reading comprehension are the ability to: [7] [8] [9] know the meaning of words,
Reading and comprehension [ edit ] Words per minute is a common metric for assessing reading speed and is often used in the context of remedial skills evaluation, as well as in the context of speed reading , where it is a controversial measure of reading performance.
The use of slow reading in literary criticism is sometimes referred to as close reading.Of less common usage is the term, "deep reading". [1]Slow reading is contrasted with speed reading which involves techniques to increase the rate of reading without adversely affecting comprehension, and contrasted with skimming which employs visual page cues to increase reading speed.