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 Sigma Mathematics Competition is an excellent mathematics competition for gifted students across the globe. This competition is for the middle school and high school students. Sigma Mathematics Competition (also known as SMC) is hosted by one of the most trusted, promising and innovative organizations, PyCalc X Organization. PyCalc X Organization is a technology and math based organization, whose mission is to provide knowledge in Mathematics and Computer Science across the globe. View our other pages to find more details about SMC 2021.