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Scientific calculator that allows you to write your expressions in infix notation.
Learn using flash cards.
Pass California motorcycle theory test.
Replace characters of one alphabet with characters of another.
Family tree software for the Macintosh, document, store, and display information about your family.
A gorgeous, living periodic table where every element is shown.
Keep track of homework, reports & school projects.
Complete data record of certified drugs in Switzerland.
Search PubMed, Amazon, Google Scholar, Library of Congress.
