$ And logic language in Excel

1. Reference types of functions

1.1 Absolute references

In excel, the formula address copied by absolute reference will not change, such as

Cell C1 has a formula: =$A$1+​$B$1
When the formula is copied to cell C2, it is still: =$A$1+$B$1
When the formula is copied to cell D1, it is still: =$A $1+$B$1

1.2 Relative references

In excel, the formula address copied by absolute reference will change, such as

Cell C1 has a formula: =A1+B1
When the formula is copied to cell C2, it becomes: =A2+B2
When the formula is copied to cell D1, it becomes: =B1+C1

1.3 Mixed references

In excel, the absolute reference copied part of the formula address will change, which is related to the $add position. If it is placed before the row, it means the row is locked, if it is placed before the column, it means the column is locked, such as:

Cell C1 has a formula: =$A1+B$1
When the formula is copied to cell C2, it becomes: =$A2+B$1
When the formula is copied to cell D1, it becomes: =$A1+C$1

1.4 Generate a 9*9 multiplication table

1. First generate 1-9 rows (B1-J1) and 1-9 columns (A2-A10)
2. It can be found that for rows 1-9, it needs to be fixed to the first column, which is B$1; for columns 1-9, the first row needs to be fixed, which is $A2.
3. So the formula can be written as =B$1*$A2

2. The logical language IF/AND/OR in excel

The logical language usage in excel is almost the same as in other languages

2.1 IF

=IF(logical_test, value_if_true, value_if_false)

The IF statement may have two results. The first result is that the comparison result is True, and the second result is that the comparison result is False

For example, =IF(C2=”Yes”,1,2) means IF(C2 = Yes, then return 1, otherwise return 2)

2.2 AND

AND(logical1, logical2,...)

The AND statement is used to determine whether all conditions in the test are TRUE

For example, =AND(A2>1,A2<100) means if A2 is greater than 1 and less than 100, it will display TRUE; otherwise it will display FALSE

2.3 OR

OR(logical1, logical2,...)

OR statement is used to determine whether a condition is TRUE in the test

For example, =OR(A2>1,A2<100) means if A2 is greater than 1 or less than 100, it will display TRUE; otherwise it will display FALSE

2.4 Nested use of logic statements