Calculator input methods: Difference between revisions

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{{main|order of operations}}
 
Infix notation with [[order of operations]] where used by scientific calculators in from the 70th to the 90th. With this mode the mathematical order of operations is where honored but advanded operations like √ or x<sup>2</sup> where are still entered after the operation. This mode of operation has been replaced by [[#Direct_algebraic_logic_.28D.A.L..29|Direct algebraic logic]].
 
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