May 6, 2014 · The term "scalar" comes from linear algebra, where it is used to differentiate a single number from a vector or matrix. The meaning in computing is similar. It distinguishes a single value like an integer or float from a data structure like an array. This distinction is very prominent in Perl, where the $ sigil (which resembles an 's') is used to denote a scalar variable and an @ sigil (which ...

Mar 15, 2012 · It kind of depends on the language. For example, in languages like C and C++, you have a number of built-in scalar types - int, float, double, char, etc. These are "primitive" in the sense that they cannot be decomposed into simpler components. From these basic types you can define new types - pointer types, array types, struct types, union types, etc. Then you have a language like old-school ...

Nov 2, 2020 · Microsoft’s Scalar apparently does some repacking in the background, but that’s only documented somewhat vaguely and in the context of fetch and checkout, so I’m not totally clear on what the implications are on the central repo. (I also hit a bit of research fatigue here.)

May 12, 2017 · Well, every scalar type in C, pointer, boolean (since C99), number (floating-point or not) and enumeration (due to direct mapping to numbers) has a "natural" falsey value, so that's good enough for any conditional expression.

Aug 6, 2017 · JSON supports the following data structures (Java equivalents): Scalar, Array/List, and Map. A Set is not supported out-of-the-box in JSON. I thought about several ways to represent a set in JSON...

Mar 8, 2017 · When transferring object through an API, as in schemaless JSON format, what is the ideal way to return non-existent string property? I know that there are different ways of doing this as in example...

When, why, and how would it be possible to gain performance improvements in software by expressing calculations as matrix multiplications? If I were to calculate the matrix multiplication in the second (matrix-based) image myself, as a human, I'd do it by sequentially doing each of the distinct calculations shown in the first (scalar) image.

Jun 8, 2017 · The syntax 3 of protobuf made all the fields optional dropping the keywords required and optional from previous proto2 syntax. Reading some comments from developers it seems that it was done for

The compiler may apply scalar replacement of aggregates (SRA, SRoA), which means the local array (which is used in elementwise single assignment way) approach and the local variables approach might be optimized in the same way, without requiring a stack space for hundreds of float elements or variables.

Feb 27, 2014 · I am currently developing a math-physics program and I need to calculate if two vectors overlap one another, the one is vertical and the other is horizontral. Is there any fast algorithm to do this