Data World
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Excel formulas
Function What it Counts Syntax Example Range Output Example COUNT Only numeric data =COUNT(range) A1(e.g. 1, "Text", 3, "", 5) =COUNT(A1:A5) → 3 (counts 1,…
Tensors
A Tensor is a N-dimensional Matrix : A Scalar is a 0-dimensional tensor A Vector is a 1-dimensional tensor A Matrix is a 2-dimensional tensor A …
Vectors
Definition A vector is a quantity that has both magnitude and direction . Vectors can be represented in different ways, such as geometrically (with arrows)…
Matrices
Definition A matrix is a rectangular array of numbers , symbols, or expressions arranged in rows and columns. Types of Matrices Square Matrix : A matrix wi…
What is Data Lake
A data lake is a centralized repository that allows you to store all your structured and unstructured data at any scale. You can store your data as-is, witho...