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Spreadsheets Relative & Absolute Addresses. CIL 102 ‘08 Fall. Relative & Absolute Addresses. The concept of relative and absolute addresses becomes relevant when a spreadsheet user builds spreadsheets and copies formulas - PowerPoint PPT Presentation
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CIL 102‘08 Fall

• The concept of relative and absolute addresses becomes relevant when a spreadsheet user builds spreadsheets and copies formulas

• Copying formulas is frequently performed as a part of fundamental process

Compute perimeter and area of rectangles

• Formulas– P = 2*(L+W)– A = L*W

• Use labels to set up your table

Compute perimeter and area of rectangles

• Place perimeter formula in the first row

• Place area formula in the first row

Compute perimeter and area of rectangles

• Highlight the two formulas and select Copy

• Copy them to the remaining slots in the two columns by highlighting the area and select Paste

Simple Relative Address ExampleCompute perimeter and area of rectangles• As you move the cursor

from formula to formula, not how the references to the length and width are adjusted, relative to the formula.

• The formulas in row 4 reference the length and width in row 4, the formulas in rows 5, reference the values in row 5, and so forth.

• As long as the addresses associated to a formula change as the formula location changes, then relative addressing is fine

• RULE OF THUMBNormally, formula

references within a table are relative addressed as long as data and formulas are in rows or columns.

• Use a color highlight for each table to guide you.

• To illustrate absolute addressing, consider this variation of the perimeter/area table where the length is fixed.

• Perimeter and area change with length.

• Note that the length is outside of the table, it stays fixed.

• The width varies from row to row.

The F4 Key.• When you point to the

length, press the F4 key. Note the \$ symbols – this indicates an absolute address

• The width is a relative address

The F4 Key.• When the formula is

duplicated down the column, the length reference says fixed (absolute), the width reference is relative

The F4 Key.• Complete the area

computation in the same manner

The F4 Key.• Complete the Area

computation with one absolute and one relative address.

• Copy the formula• Note the absolute and

relative references.

GPA Calculator

GPA Calculator

GPA Calculator

• Lookup the grade in the table and record the points• Compute the total points• Sum the points• Sum the credits• Compute the GPA

Look up the grade• Vertical look up table• The look up table is outside of the GPA table, hence

ABS address.• The grade being looked up is in the GPA table, hence

Vlookup

Vlookup

VLookup

Multiply points * credits

Copy formulas down columns

Auto Sum

• Credit column• Total points column

GPA

• Divide total points by total credits

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