What does (#) mean in math?
The # symbol is a stand in for an operation. For example 2 x 3 means take 2 and add it together 3 times (multiplication). The “x” tells you what you are supposed to do with the numbers. In your example the textbook is defining the operation “#” to mean “take x, times by two, then subtract 3 times y”.
What does a plus before a number mean?
When representing numbers, they were written as 11 decimal digits plus sign. Solutions with a plus sign are called instantons, those with the minus sign are anti-instantons.
What is the 1 before a phone number?
“1,” of course, is the country code for the United States.
What does ≈ mean?
approximately equal to
≈ means approximately equal to, or almost equal to. The two sides of a relationship indicated by this symbol will not be accurate enough to manipulate mathematically.
What does symbol mean in reading?
What is a Symbol? In literature, symbols are often characters, settings, images, or other motifs that stand in for bigger ideas. Authors often use symbols (or “symbolism”) to give their work with more meaning and to make a story be about more than the events it describes.
What is the meaning of the – symbol in math?
This symbol has two main uses in mathematics: – is used when one or more numbers are to be subtracted, for example, 2 − 2. The – symbol is also commonly used to show a minus or negative number, such as −2.
What does the word ~ before a number indicate?
“What does ~ before a number indicate, e.g. ~40?” In most contexts, that means “approximately”. “The party will have ~40 guests” means there will be around 40 guests. , BITS Goa.
What does the – symbol mean on a calculator?
The − symbol is also commonly used to show a minus or negative number, such as −2. See our page on Subtraction for more. × or * or . Multiplication These symbols have the same meaning; commonly × is used to mean multiplication when handwritten or used on a calculator 2 × 2, for example.
What does ab∆XYZ mean?
Geometry symbols Symbol Symbol Name Meaning / definition Example ⊥ perpendicular perpendicular lines (90° angle) AC ⊥ BC ∥ parallel parallel lines AB ∥ CD ≅ congruent to equivalence of geometric shapes and size ∆ABC≅ ∆XYZ ~ similarity same shapes, not same size ∆ABC~ ∆XYZ