Frequently asked questions
What's the difference between DEG and RAD mode?
Trigonometric functions can interpret angles in degrees (0-360° per circle) or radians (0-2π per circle) — the toggle switches which convention sin, cos and tan use, since the same input number means a very different angle in each system.
How does the memory function work?
M+ adds the current display value to memory, M− subtracts it, MR recalls the stored value to the display, and MC clears memory back to zero — useful for holding onto an intermediate result while you calculate something else.