👉 In mathematics, a "subdual" of a vector space V is an alternative vector space that has the same dimension as V but whose basis vectors are orthogonal to those in V. This concept can be used to generalize the concept of dual spaces from linear algebra to infinite-dimensional spaces and beyond. For instance, if V is a finite-dimensional vector space over a field F, then any subdual of V will also have dimension equal to that of V. Subduals are particularly useful
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What is the definition of Subdual? 🙋
👉 In mathematics, a subdual of a real number is defined as an element that can be considered as the dual to another real number. This means that if x is a real number and y is a subdual of x, then there exists some positive real number λ such that xy = λx. For example, let x = 3 + 4i and y = 5 - 6i be two complex numbers. Then the subdual of x, denoted by
