# What do you mean by delta as a symbol in physics?

Delta is a symbol that denotes a change in something. In physics the delta-v is used to calculate the change in velocity, or change in velocity over time.

### What does the symbol pyramid mean?

That pyramid symbol (or better defined as a triangle as to not get confused with lower mathematics / geometry) simply means a change in something. The actual term is "delta" and it is also known as the derivative of y as seen here: (delta) y / (delta) x. (delta) y / (delta) x would be read as the change in y with respect to x.

### What does lambda symbol in physics mean?

In physics, the lambda symbol, which is the Greek letter λ, represents the wavelength of any wave. The wavelength of a wave is the distance over which the curvature of a wave's shape repeats itself. Types of wavelengths often applied with this symbol include light waves, water waves, and sound waves.

### How do you type the delta symbol on Microsoft Word or Excel?

Select Insert | Symbol, scroll down to Mathematical Operators subset, highlight the delta (∆) symbol, and click Insert. For a mac, if you're in Microsoft word, just hit Option+J and that should produce the ∆ symbol . If you prefer the lower case delta, just scroll through the list until you find the symbol you want.

### What does delta mean in maths?

There are many meanings. The most common one is "change in". So delta x is the change in x. This form is often used in calculus where it means very small changes in x. But there is also the Dirac delta function, a fundamental mathematical underpinning for quantum physics. A delta can also be a quadrilateral which is otherwise known as an arrowhead.