8/6/2023 0 Comments Logic not equal symbol![]() Here are some simple examples: julia> 1 = 1Īnd can cause headaches when working with arrays: julia> = Standard comparison operations are defined for all the primitive numeric types: Operator Therefore this syntax is disallowed, and spaces must be used around the operator in such cases. For example, it is not clear whether 1. x means 1. ⊗ will compute with no additional coding.Ĭombining dot operators with numeric literals can be ambiguous. For example, if you define ⊗(A,B) = kron(A,B) to give a convenient infix syntax A ⊗ B for Kronecker products ( kron), then. Note the dot syntax is also applicable to user-defined operators. = is a fused in-place assignment operation (see the dot syntax documentation). * x.^2 are equivalent to nested dot calls ( ).(x, (*).(3, (^).(x, 2))).įurthermore, "dotted" updating operators like a. In particular, nested dot calls like f.(g.(x)) are fused, and "adjacent" binary operators like x. sin.(A) (or equivalently 2A^2 sin(A), using the macro) for an array A, it performs a single loop over A, computing 2a^2 sin(a) for each element a of A. Moreover, like all vectorized "dot calls," these "dot operators" are fusing. combining row and column vectors to produce a matrix). ^ b is parsed as the "dot" call (^).(a,b), which performs a broadcast operation: it can combine arrays and scalars, arrays of the same size (performing the operation elementwise), and even arrays of different shapes (e.g. Similarly for unary operators like ! or √, there is a corresponding. ^ 3 is defined as computing the elementwise (or "vectorized") result. For example, ^ 3 is not defined, since there is no standard mathematical meaning to "cubing" a (non-square) array, but. ^ that is automatically defined to perform ^ element-by-element on arrays. julia> x = 0x01 typeof(x)įor every binary operation like ^, there is a corresponding "dot" operation. As a result, the type of the variable may change. The updating versions of all the binary arithmetic and bitwise operators are: = -= *= /= \= ÷= %= ^=
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |