How to Use the Scientific Calculator

This calculator works like a desk calculator, with extra scientific functions. Here’s a quick walkthrough.

1) Degrees vs Radians

• Deg for typical angles like \(30^\circ, 45^\circ, 90^\circ\).
• Rad for radians (common in higher math/physics).

2) Basics

• Enter numbers with the number keys (0–9).
• Operators on the right:
  • \(\div\) division
  • \(\times\) multiplication
  • \(-\) subtraction
  • \(+\) addition
  • = equals (calculates your result)

3) Scientific Functions

• Trig: \(\sin, \cos, \tan\) and inverses \(\sin^{-1}, \cos^{-1}, \tan^{-1}\)
• Powers & roots: \(x^2,\; x^3,\; x^y,\; \sqrt{x},\; \sqrt[3]{x},\; \sqrt[y]{x}\)
• Logs & exponents: \(\ln x,\; \log_{10} x,\; e^x,\; 10^x\)
• Other: \(n!\) (factorial), \(1/x\) (reciprocal), \(\%\) (percent), \(\pi,\; e\)

4) Memory Keys

• M+: add current result to memory
• M−: subtract current result from memory
• MR: recall what’s stored

5) Handy Buttons

• AC: clear everything
• Back: delete last entry
• Ans: use your previous answer
• ±: switch sign

6) Tips

• Use parentheses \(( \; )\) to control order of operations.
• Results are rounded to 4 decimal places.
• Keyboard works too:
  • Digits, operators \((+, −, \times, \div)\), parentheses, and Enter for equals
  • Backspace deletes, Esc clears