To meet the White House mandate to set the data free, The Open Innovation team @ NASA enables users, access to data in a format that is useful. In doing so, they hope to spark your creative juices and equip you with tools to innovate your world – whether local, global, or interstellar – leveraging […]

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In mathematics, a Kaprekar number for a given base is a non-negative integer, the representation of whose square in that base can be split into two parts that add up to the original number again. For instance, 45 is a Kaprekar number, because 45² = 2025 and 20+25 = 45. The Kaprekar numbers are named […]

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Here is the java code and JUnit test cases for simple math expression. The math expression can have numbers and basic operators like plus, minus, division, multiplication. Well that’s very simple to compute. However add in the parentheses into the scheme of things and it gets a little more interesting. The operator precedence and parentheses […]

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