To indicate something you don't understand
symbol
This is an easy one. The symbol on the bottle was of an X over a skull; it was poisonous
There is no specific symbol. The symbol for real numbers is R and that for rational numbers is Q so you could use R \ Q.
Rectangles
You can use the same symbols that you use to compare integers or decimals: equal, greater than, greater-than-or-equal, etc.
A question mark is a punctuation mark, it replaces the use of a full stop at the end of a sentence that is asking a question.
11235
The backwards question mark symbol (؟) is called the Arabic question mark and is used in languages that are written from right to left, such as Arabic and Persian. It serves the same purpose as the regular question mark to indicate a question in writing.
The Great Unknown.
Henry Denham during the 1580`s
ee
The Eye of Horus is an ancient Egyptian symbol of protection, royal power and good health.
Aproximately no one is named harry(questionmark)
Sorry, what is your question? There is a sentence with a questionmark, but that's no question.
Hold the "shift" key while pressing the "?" (slash) key.
Putting a questionmark at the end of a disjoint phrase does not constitute asking a proper question!
because its a good Canadian symbol