Bug in Windows 7 Calculator
There is a basic bug in the windows 7 calculator (only in standard view)
The equation 1 + 2 * 3 give the answer 9.
In fact the answer should be 7.
If one plays about a bit one discovers that it is simply performing operations on from left to right and failing to perform the multiplication and division before addition and subtraction.
If I try the same equation in either Scientific or Programmer view one gets the correct answer (i.e.
Solutions to the Problem Bug in Windows 7 Calculator
The hierarchy in the basic calculator is left to right so it is
1 + 2 = 3
3 * 3 = 9
The Scientific and Programmer Calculator use the Hierarchy of Mathematical Operations
and the Standard Calculator processes the functions 1 at a time in the order entered.
Hierarchy of Mathematical Operations
This has been well noted in many versions of the calculator.
Hope this helps.
Rob Brown - Microsoft MVP <- profile - Windows Expert - Consumer : Bicycle <- Mark Twain said it right!
To check for Windows updates. Open Windows Update by clicking the Start button , clicking All Programs, and then clicking Windows Update. In the left pane, click Check for updates, and then wait while Windows looks for the latest updates for your computer. If any updates are found, click Install updates.
Install the latest updates for Windows and for the program displaying the error. Note that the update for the program might be listed as an optional update on the Windows Update page.
Open Windows Update by clicking the Start button Picture of the Start button. In the search box, type Update, and then, in the list of results, click Windows Update.
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