Chapter 2. Lookup Functions

  • How do I write a formula to compute tax rates based on income?

  • Given a product ID, how can I look up the product’s price?

  • Suppose that a product’s price changes over time. I know the date the product was sold. How can I write a formula to compute the product’s price?

Syntax of the Lookup Functions

Lookup functions enable you to "look up" values from worksheet ranges. Microsoft Office Excel allows you to perform both vertical lookups (by using the VLOOKUP function) and horizontal lookups (by using the HLOOKUP function). In a vertical lookup, the lookup operation starts in the first column of a worksheet range. In a horizontal lookup, the operation starts in the first row of a worksheet range. Because the majority ...

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