Delta /ˈdɛltə/ (uppercase Δ, lowercase δ or 𝛿 Greek: δέλτα délta, [ˈðelta]) is the fourth letter of the Greek alphabet. In the Greek numeral system, it has a value of 4. It derives from the Phoenician letter dalet 𐤃, letters originating from the delta include Latin D and Cyrillic Д.
Why is delta a triangle?
Named after the fourth letter of the Greek alphabet (shaped like a triangle), a delta is a triangular area where a large river divides into several smaller parts that usually flow into a larger body of water.
What does ∆ mean?
∆: Means “change” or “difference,” as in the equation for the slope of a line: 2. 1. 2.
What does ∆ mean in physics?
What does ∆ mean in physics? In general physics, the terms delta change and deltav are simply a change in velocity. The uppercase Greek letter delta is the standard mathematical symbol to represent the change in a given magnitude. Depending on the situation, deltav can be either a spatial vector (Δv) or a scalar (Δv).
Why is the delta symbol a triangle?
Why is delta a triangle? It derives from the Phoenician letter dalet ?? ab, letters originating from the delta include Latin D and Cyrillic Д. A river delta (originally the Nile Delta) is so named because its shape is close to the triangular capital letter delta.
What does ∆ mean in physics?
What does ∆ mean in physics? In general physics, the terms delta change and deltav are simply a change in velocity. The uppercase Greek letter delta is the standard mathematical symbol to represent the change in a given magnitude. Depending on the situation, deltav can be either a spatial vector (Δv) or a scalar (Δv).
Why is the symbol for change a triangle?
“Δ” comes from the Greek word Διαφορά = difference. Usually it really represents the difference in value of a variable before and after a change, e.g. When differences become differential, Δ was probably the “parent” symbol of d, the symbol of differentials: dx = limit of Δx as x₂ approaches x₁ infinity.