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Developer builds open-source GPA calculator, explains nuances of grade point math

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A developer created a GPA calculator using vanilla JavaScript after finding existing tools required accounts or had intrusive interfaces. The project revealed significant variations in how different institutions calculate grade points, particularly regarding plus/minus grades and weighted courses. The calculator allows configuration of grading scales and handles common edge cases like retaken courses and pass/fail credits. The tool operates entirely client-side to protect user privacy, with no data storage or account requirements.

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