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Line 1: '''DAL''' (acronym for '''Direct Algebraic Logic''') is a method for entering equations on scientific calculators which allows symbols and numbers to be entered as they are written. [[Sharp Corporation\|SHARP]] introduced it in [[1990s]]. Today DAL is used almost with every scientific calculator except those which use [[Reverse Polish Notation\|RPN]]. Example: <tt>sin(30)</tt>

Calculator input methods: Difference between revisions