It stores a date as a number which is the number of days starting on the 1st of January 1900 to the date being stored.
numerical
a serial value to the date
This is a true statement, but is not a question. Ask again using words that make it clear what you want to know.
This question is not clear. You can use dates in a formula, but you can not assign a formula value to a date. If you are trying to use dates in formulas, use them like you would any other number. If A1 contains a date, you can show the date six days earlier by using the formula =A1-6.
In Excel every cell contains what is seen (value) and what is not seen (formula) and in most cases these are the same thing. When you enter a date in the cell Excel recognizes this and instantly converts the date into a single number whose value represents the number of days from January 1, 1900. You can format the cell to still appear as a date but the formula contains this number which makes it easy to compare or sort against other cells also containing dates.
It assigns exactly one output value for each input value.
A function is a rule that assigns a single value to each element in a domain.A function is a rule that assigns a single value to each element in a domain.A function is a rule that assigns a single value to each element in a domain.A function is a rule that assigns a single value to each element in a domain.
The default format style that Excel assigns to all cells in a workbook is the General format. This format displays numbers as they are entered and adjusts automatically based on the content of the cell.
first
A function is a rule which assigns exactly one output f(x) to every input x.
I found two answers for this question. A function is a rule that assigns to each value of one variable (called the independent variable) exactly one value of another variable (called the dependent variable.) A function is a rule that assigns to each input value a unique output value.
It is a bijective function.