Quiz and learn engineering topics
Learn about engineering through interactive quizzes on topics like introduction to science, hardware vs. software fundamentals, and career opportunities.
Showing 541–560 of 1,000 ranked alternatives.
Airton Siqueira de Freitas
Learn SQL with interactive lessons and tests
Learn SQL fundamentals with interactive lessons on SELECT, INSERT, UPDATE, and DELETE. Practice filtering and grouping using WHERE, GROUP BY, HAVING, and ORDER BY. Explore table relationships through JOIN types.
Pollmine.Com
Access apps, learn, explore
Access educational content with bite-sized tutorials, flashcards for key concept memorization, and simple quizzes. Explore apps across K-12, college, professional, and language categories. Sync progress and review material on multiple devices.
Alexander Lee
Convert numbers between different bases
Convert numbers between binary, octal, decimal, duodecimal, and hexadecimal. Input a value and instantly see conversions in all supported bases. Adjust settings and view numerical representations side by side.
Yauheni Chumakou
Learn Swift, master interviews, and build apps
Learn Swift programming with interactive games, quizzes, and challenges. Access 300+ real interview questions across topics like UIKit, Memory Management, and SwiftUI. Read tutorials and articles for all skill levels.
Patrick Lyonnais
Solve linear models and optimize results
Solve linear programming problems using the simplex algorithm and MIP solver for 0-1 and integer variables. Input constraints and objectives. View solution details and sensitivity analysis. Export results as text files.
Satish Boggarapu
Convert numbers between , , hex,
Convert , , hex, and octal numbers with one-tap input. Perform bidirectional conversions between all number systems. Save and share conversion results. View detailed conversion steps and history.
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