Chemical Formulas and Compounds Determining Chemical Formulas.
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EXCEL FORMULAS & FUNCTIONS 2
Lingwei Chen
September 5, 2017
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LOGICAL CONDITIONS
• In logic, a sentence or proposition of the form “If A then B”
A: logical condition
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Morgantown Washington D.C.
If taking a flight, then 50 min
If driving, then 3 h 30 min
If walking, then 67 h
LOGICAL CONDITIONS
• A: logical condition
– If a logical condition is satisfied, then we can get the corresponding result defined
– The different logical conditions lead to different results
• In Excel, a logical condition is a comparison using mathematical
symbols that evaluate to true or false
– If the comparison is right, the result is TRUE
– If the comparison is wrong, the result is FALSE
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LOGICAL CONDITIONS
• For example
– 3 < 5 is TRUE
– 4 > 6 is FALSE
– 9 <= 10 is TRUE
– 8 >= 12 is FALSE
– 8 = 8 is TRUE
– 8 <> 8 is FALSE
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Comparison Operators
Operator Description
= Equal to
<> Not equal to
< Less than
> Greater than
<= Less than or equal to (at most)
>= Greater than or equal to (at least)
IF FUNCTION
• The most common logical function is IF function in Excel.
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If function has three
arguments
– A logical condition
– What to do if condition
is met (true)
– What to do if condition
is not met (false)
= 𝐼𝐹(8 < 10 , "Yes" , "No")condition What to
show if
TRUE
What
to
show if
FALSE
AND FUNCTION
• AND function requires all logical conditions to be true to return TRUE.
• If one condition is false, then the result is FALSE.
• If both conditions are false, then the result is FALSE.
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OR FUNCTION
• OR function is opposite of AND function.
• As long as one logical condition is TRUE, then the result is TRUE.
• If all conditions are false, then the result is FALSE.
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NESTED IF FUNCTION
• Nested means putting an IF function in another IF function.
• Nested IF functions are used to make three or more comparisons.
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Cell
A1 = 1Result
Bad
If A1=1, then “Bad”
If A1=2, then “Good”
If A1=3, then “Excellent”
= 𝐼𝐹(𝐴1 = 1 , "Bad" , 𝐼𝐹(𝐴1 = 2, "Good", "Excellent"))
HOW TO INSERT IF FUNCTION
• The first way: Enter the If
function in the cell directly.
• The second way:
– Click in the cell where you want to
insert the function
– Click Formulas ribbon
– In the Function Library section,
click Logical▼
– Click IF function
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HOW TO INSERT IF FUNCTION
• In Function Arguments dialog:
– Logical_test
Use logical operators
=, <, >, <=, >=, <>
– Value_if_true
What to do if logical condition is
true
– Value_if_false
What to do if logical condition is
false
• Click OK
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HOW TO INSERT AND FUNCTION
• The first way: Enter the AND
function in the cell directly.
• The second way:
– Click in the cell where you want to
insert the function
– Click Formulas ribbon
– In the Function Library section,
click Logical▼
– Click AND function
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HOW TO INSERT AND FUNCTION
• In Function Arguments dialog:
– Logical1
Enter the first logical condition
– Logical2
Enter the second logical
condition
– Logical3
Enter the third logical condition
when there is one
• Click OK
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HOW TO INSERT OR FUNCTION
• The first way: Enter the OR
function in the cell directly.
• The second way:
– Click in the cell where you want to
insert the function
– Click Formulas ribbon
– In the Function Library section,
click Logical▼
– Click OR function
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HOW TO INSERT OR FUNCTION
• In Function Arguments dialog:
– Logical1
Enter the first logical condition
– Logical2
Enter the second logical
condition
– Logical3
Enter the third logical condition
when there is one
• Click OK
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HOW TO INSERT NESTED IF FUNCTION
• The first way: Enter the Nested
IF function in the cell directly.
• The second way:
– Click in the cell where you want to
insert the function
– Click Formulas ribbon
– In the Function Library section,
click Logical▼
– Click IF function
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HOW TO INSERT NESTED IF FUNCTION
• In Function Arguments dialog:
– Logical_test
Use logical operators
=, <, >, <=, >=, <>
– Value_if_true
You may type the additional IF
function here (see slide 9)
– Value_if_false
You may type the additional IF
function here (see slide 9)
• Click OK
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3-D FORMULAS
• 3-D Formulas are used to
reference data on another
spreadsheet in the same
workbook
• Syntax:
=[name of sheet]![cells to
reference]
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HOW TO INSERT 3-D FORMULAS
• Click on worksheet tab where
you want to insert your 3-D
formula
• Select the cell
• Type “=”
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HOW TO INSERT 3-D FORMULAS
• Click worksheet tab for first
reference
• Select desired cell
• Enter arithmetic operator
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Operation Symbol in Excel
Addition +
Subtraction -
Multiplication *
Division /
HOW TO INSERT 3-D FORMULAS
• Click worksheet tab for
second reference
• Select desired cell
• Press “Enter”
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