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Quick reference

• Trig functions (sin, cos, tan, sin⁻¹, cos⁻¹, tan⁻¹) interpret their input as degrees or radians — switch with the Deg/Rad toggle.
• x² appends ^2 to whatever's currently on screen. xʸ lets you enter a custom exponent. 1/x = ^-1.
• EXP means "× 10 to the power of" — useful for entering things like 6.022 × 10²³.
• Memory: M+ adds the current result to memory, M− subtracts, MR recalls it. MC clears memory.
• Ans brings back the last equals result so you can chain calculations.
• Unclosed parens are auto-closed when you press =, so you don't have to balance them yourself.

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