# I am trying to use the 11c and do not know how to enter the values to get an answer. For example how do you do 1 2 = ? Is there a site where I can download the instruction manual since I hate to buy a new TI calculator because I just don't know how to enter the numbers into the calculator. Thanks

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That depends on what you want to do with the 1 and the 2. If you want to add them together, for example, you would press
1 ENTER 2 +
If you wanted to multiply them together, you would press
1 ENTER 2 *

It's not free, but you can order the HP-11C manual from
http://www.hpmuseum.org/software/swcd.htm

There's also a fairly good tutorial on RPN there at
http://www.hpmuseum.org/rpn.htm

Posted on Sep 15, 2011

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