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SCPI commands to an instrument may either perform a set operation (e.g. switching a power supply on) or a query operation (e.g. reading a voltage). Queries are issued to an instrument by appending a question-mark to the end of a command. Some commands can be used for both setting and querying an instrument.
Using the command design pattern describes the following solution: Define separate (command) objects that encapsulate a request. A class delegates a request to a command object instead of implementing a particular request directly. This enables one to configure a class with a command object that is used to perform a request.
For the Autotools, the configure script logs status and errors to file config.log, and the command ./configure --help outputs command line help information. Often, a document with instructions is included with the codebase; often in a file named INSTALL. It can be helpful if the configure script fails.
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1. Chick-fil-A. Chicken plays a central role at Chick-fil-A, so the chain is dedicated to ensuring the quality of its meat. For decades, the company has been touting the fact that is uses "real ...
Man Called Toddler's Mother About Abnormal Breathing. Now He’s Accused of ‘Heinous, Despicable, Disgusting Crime’
Python sets are very much like mathematical sets, and support operations like set intersection and union. Python also features a frozenset class for immutable sets, see Collection types. Dictionaries (class dict) are mutable mappings tying keys and corresponding values. Python has special syntax to create dictionaries ({key: value})
DETROIT (Reuters) -U.S. automakers Ford Motor and General Motors will donate $1 million each, along with vehicles, to U.S. President-elect Donald Trump's January inauguration, company ...