Mr. Schilling used geo-mapping software to calculate the best positions for regional "washing stations" where farmers clean coffee fruit.

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It even requires states to give sellers free software to calculate the tax.

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States must provide free computer software to help retailers calculate sales taxes, based on where shoppers live.

NPR: Senate Bill Jeopardizes Tax-Free Online Shopping

Having calculated the total units of software installed, as well as the number of legitimate and unlicensed software units installed and the average price per software unit, IDC is able to calculate the commercial value of unlicensed software.

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It's no coincidence that Cooper sees smart antennas as the savior of the wireless industry: He serves as chairman of ArrayComm, a company that develops software for using antenna arrays to calculate the origin of cell signals.

FORBES: Magazine Article

The number of users is hard to calculate, since the software is free and many engineers install it without telling their superiors.

ECONOMIST: Software

Hennepin County's Johnson notes that if there were a uniform tax system, a simple software program that includes a base state tax rate plus local options could be used by businesses to easily calculate and administer sales tax.

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