Mr. Pen scientific calculator helps students and professionals tackle math and science work with a clear 2-line screen and a wide range of functions. Professional-grade performance — includes 240 scientific functions for advanced calculations. 10+2-digit widescreen HD display — easy-to-read formatting for everyday and complex problems. 2-line display — shows your entry and the calculated result at the same time for fewer mistakes. Great for fractions and coursework — supports classroom-ready math for high school, college, and beyond. Protective hard cover — helps prevent scratches and dings in backpacks and desk drawers. Comfortable to hold — ergonomic design offers a secure grip during long study sessions.