Hi Muthu,
You're correct that calculators are generally not allowed on the GMAT. The GMAT is designed to test your problem-solving ability and numerical reasoning skills without relying on calculators. Here's how it works:
Quantitative Section: Calculators are not permitted in this section. The GMAT expects you to perform basic calculations mentally or on the scratch pad provided during the test.
Integrated Reasoning Section: A basic on-screen calculator is provided for this section only. This section often involves data analysis, and the calculator helps simplify numerical tasks, but it's very basic (not scientific or programmable).
For comparison, the GRE does allow a basic on-screen calculator for its quantitative section, but personal calculators (standard or scientific) are not allowed for either exam.
If you're preparing for the GMAT, it's good to focus on mental math, approximation techniques, and efficient problem-solving strategies. Let me know if you'd like tips for GMAT prep!
Best regards,