Uppercase and lowercase delta are used in different contexts. For example, the uppercase delta, which looks like a triangle, is often used to indicate a difference in some quantity (for example, when a quantity increases or decreases over time). More details here:
http://en.wikipedia.org/wiki/Delta_(letter)#Math_and_science
DElta means "Change" delta can be represented by a triangle
a sign
= is the equals sign + is the plus sign * is the multiplication sign / is the divide sign - is the minus sign
This is greater > then this
Typically, delta means "change in" in math.
DElta means "Change" delta can be represented by a triangle
delta
math ha these sign in it so it involves these sign +, =, $, %, # and more.......
it looks like the delta sign.
you cant
A subtraction sign.
a sign
+
Delta, is just a Greek letter very used in Math. It's meaning depends on the context. But a very common meaning, specially for capital delta ( a triangle) is difference. For instance, a temperature Delta usually means the difference of the temperatures of 2 objects. In your case, it probably means the difference of the given values
Math equations have an equals sign such as: 7+5=12 or 9x6=47+7 Math expressions do not have a equals sign such as: 43-27 or 8x40
we use "+" sign.