- #1
pellman
- 684
- 5
Looks like [tex]\triangleq[/tex]. I first came across it on the wikipedia article for Lie derivative. http://en.wikipedia.org/wiki/Lie_derivative#The_Lie_derivative_of_a_function
The triangle equals sign, also known as the delta equals sign, represents a change or difference in a variable or quantity. It is often used in mathematics and physics to show a change in a particular value.
The triangle equals sign is different from the regular equals sign in that it specifically indicates a change or difference between two values, while the regular equals sign indicates that two values are equal.
Yes, the triangle equals sign can also be used in other fields such as engineering, economics, and statistics to represent a change or difference in a particular variable or quantity.
Yes, the triangle equals sign is often used to represent the Greek letter delta, which is the fourth letter in the Greek alphabet and is commonly used in math and science to signify a change or difference.
Solving equations with the triangle equals sign is similar to solving equations with the regular equals sign. You can isolate the variable on one side of the equation and use algebraic operations to solve for its value. However, it is important to remember that the triangle equals sign specifically indicates a change or difference between two values, so your final answer may be a difference or a change rather than a specific number.