What is the difference between y[n] and y(k) (using square brackets)?

1. What is the difference between square brackets?
2. What do square brackets mean in statistics?
3. What do you use [] for?
4. What is square brackets in Python?

What is the difference between square brackets?

Usually we use square brackets - [ ] - for special purposes such as in technical manuals. Round brackets - ( ) - are used in a similar way to commas when we want to add further explanation, an afterthought, or comment that is to do with our main line of thought but distinct from it.

What do square brackets mean in statistics?

The notation may be a little confusing, but just remember that square brackets mean the end point is included, and round parentheses mean it's excluded. If both end points are included the interval is said to be closed, if they are both excluded it's said to be open.

What do you use [] for?

Square brackets, often just called brackets in American English, are a set of punctuation marks that are most often used to alter or add information to quoted material.

What is square brackets in Python?

The indexing operator (Python uses square brackets to enclose the index) selects a single character from a string. The characters are accessed by their position or index value. For example, in the string shown below, the 14 characters are indexed left to right from postion 0 to position 13.