Q1: What is a scientific calculator and what can it do?
A scientific calculator performs advanced mathematical functions beyond basic arithmetic. It includes trigonometric functions (sin, cos, tan), logarithms, exponentials, square roots, and powers. It's essential for science, engineering, and advanced math.
Q2: How do trigonometric functions work?
Trigonometric functions (sin, cos, tan) calculate ratios of sides in right triangles. The calculator accepts angles in degrees. For example, sin(30°) = 0.5. These functions are fundamental in geometry, physics, and engineering.
Q3: What is the difference between log and ln?
Log (log₁₀) is the base-10 logarithm, commonly used in science and engineering. Ln is the natural logarithm (base e, where e ≈ 2.718), used in calculus and advanced mathematics. Both are inverse functions of exponentials.
Q4: How do I calculate powers and exponents?
Use the ^ button to raise a number to a power. For example, to calculate 2³, enter 2, press ^, enter 3, then press =. The result is 2 × 2 × 2 = 8. This works for any base and exponent.
Q5: What is the order of operations?
The calculator follows standard order of operations: parentheses first, then exponents, then multiplication/division, then addition/subtraction. Enter operations in sequence, and the calculator will compute them correctly.
Q6: Can I use this calculator for complex calculations?
Yes, you can chain multiple operations together. Enter a number, select an operation, enter another number, and continue. Press = when you want the final result. The calculator maintains the calculation chain until you press = or clear.