Calculator functions:

1. Calculation History: Save, edit, and summarize your calculations.

2. Trigonometry: Perform computations with trigonometric functions, including sine (sin), cosine (cos), tangent (tan), cotangent (cot), arcsine (asin), arccosine (acos), arctangent (atan), and arccotangent (acot).

3. Logarithms: Work with natural logarithms (ln), decimal logarithms (log), and custom-base logarithms loga(b) .

4. Powers and Roots.

5. Fractions: Convert fractions (e.g., 1 1/2 ) to decimal format (e.g., 1.5).

6. Result Display Formats: Choose between normal decimal (e.g., 1000.00) and exponential notation (e.g., 1e+3 = 1 x 10³).

7. Rounding Options: Round results to various precisions, including:
- Billions (1,000,000,000)
- Hundred millions (100,000,000)
- Ten millions (10,000,000)
- Millions (1,000,000)
- Hundred thousands (100,000)
- Ten thousands (10,000)
- Thousands (1,000)
- Hundreds (100)
- Nearest 50
- Tens (10)
- Nearest 5
- Whole numbers (1)
- Tenths (0.1)
- Hundredths (0.01)
- Thousandths (0.001)
- Ten-thousandths (0.0001)
- Hundred-thousandths (0.00001)
- Millionths (0.000001)
- Ten-millionths (0.0000001)
- Hundred-millionths (0.00000001)
- Billionths (0.000000001).