The paper tape window not only serves as a quick reference, it can also be printed or saved. So, after the first calculation is done, you can enter 1500 and press Return to get that number multiplied by 1.06. Just hit Return again, and the number is multiplied by 1.06 again another press of Return gives you the third-year total of 1429.22.Īlternatively, you can enter numbers in between the repeated operation. Start with 1200 dollars times 1.06 for the first year’s 6 percent return and you get 1272. With the Calculator’s hidden “repeat the last operation” function, it’s a cinch to compute something like short-term compound interest. The Calculator displays the answer in the chosen units. Use the pop-up menus in the sheet that appears to specify what you’re converting to and from. Enter a number (or work with the one already there from a calculation) and then choose a category from the menu-Length, for example. For example, use it to convert metric units to any of the stubbornly held standard measurements the U.S. You may never have to convert hectares to acres, or inches of mercury to pounds per square inch, but the Convert menu provides more mundane changes, too. The actual number is stored internally, however, so you can continue with a calculation that uses the true number instead of the rounded one.
The displayed number is rounded, not truncated, so 1.66667 becomes 1.67. If kiwis are selling 3 for $5, does one of them cost $1.66667? When you don’t need 15-decimal place precision, use the View menu’s Decimal Places submenu to specify how many digits you want displayed. (Many OS versions ago, you could paste in a calculation like 17*34, and it would appear in Calculator as if you had clicked those keys now that calculation pastes in as the number 1734.) And, if you’ve copied a number from someplace else, just use Paste (Command-V or Edit -> Paste) when the Calculator’s open to insert the number in the Calculator field. The Copy command (Command-C or Edit -> Copy) always grabs the currently displayed number and places it on the Clipboard so you can use it elsewhere. Need to include a quick calculation in an e-mail message? Because you can’t select anything in the Calculator display, it’s easy to forget you can still use Copy and Paste commands with it. Many also work for the Scientific and Programmer versions available through the Calculator’s View menu. These tips work for the Basic calculator. It’s so unassuming you barely notice that it has menus and little interface details that make it not quite so lowly after all. The lowly Calculator sits there in your Applications folder.
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