Calculator having number keys for 3.663 and 6.336
The present invention provides a calculator comprising number keys for digits one through nine, a NULL key, a first additional number key configured to represent 3.663, and a second additional fixed value number key configured to represent 6.336. The number keys are operatively coupled to processor configure to execute mathematical functions. The calculator can be a stand-alone device, or be executed within a cell phone, tablet, or other general purpose computer.
1. A calculator having an interface comprising:
a display are that displays an array containing: function keys; number keys for digits one through nine; a NULL key; at least a first additional number key configured to represent 3.663, and a second additional fixed value number key configured to represent 6.336; and
a processor configured to receive input from the number keys, uses the input to perform a mathematical function, and sends results of the mathematical function to the display area.
2. The calculator of claim 1 , wherein a first one of the additional fixed number keys is configured to use the symbol to represent 3.663, and a second one of the additional fixed number keys is configured to use the symbol to represent 6.336.
3. The calculator of claim 1 , wherein a first one of the additional fixed number keys is configured to use the term PHEO to represent 3.663, and a second one of the additional fixed number keys is configured to use the term SIEV to represent 6.336.
4. The calculator of claim 1 , wherein the NULL key is configured to represent zero.
5. The calculator of claim 1 , wherein the NULL key is configured to represent 9.999.
6. The calculator of claim 1 , wherein one of the additional keys is positioned between the three and four keys.
7. The calculator of claim 1 , wherein one of the additional keys is positioned between the six and seven keys.
8. The calculator of claim 1 , further comprising a third additional fixed number key configured to represent 10 base10 , and a fourth additional fixed number key configured to represent 11 base10 .