Scientific Calculator

A scientific calculator is an advanced calculator that can perform complex mathematical operations beyond basic arithmetic. It includes functions for trigonometry (sin, cos, tan), logarithms (log, ln), exponentials, powers, roots, and more. These calculators are essential tools for students, engineers, scientists, and anyone working with advanced mathematics.

To use trigonometric functions like sin, cos, or tan, first enter your angle value, then click the desired function button. Make sure your calculator is set to the correct angle mode (degrees or radians) for accurate results. For inverse functions (arcsin, arccos, arctan), use the INV or 2nd button first.

Degrees and radians are two different units for measuring angles. A full circle is 360 degrees or 2π radians. Use degrees for everyday calculations (90° for a right angle), and radians for calculus and advanced mathematics. You can toggle between these modes in the calculator settings.

The calculator supports both common logarithm (log base 10) and natural logarithm (ln base e). Enter your number and click log for base 10 or ln for natural logarithm. For other bases, you can use the change of base formula: log_b(x) = ln(x) / ln(b).

Memory functions allow you to store and recall values: M+ adds the current value to memory, M- subtracts from memory, MR recalls the stored value, and MC clears memory. This is useful for multi-step calculations where you need to reuse intermediate results.

To enter numbers in scientific notation (like 3.5 × 10⁸), enter the base number (3.5), then use the EXP or ×10ˣ button, followed by the exponent (8). The calculator will display and calculate using this scientific notation format.

Yes! To calculate a factorial (n!), enter the number and click the n! or x! button. For example, 5! = 5 × 4 × 3 × 2 × 1 = 120. Note that factorials are only defined for non-negative integers.

The π button inserts the mathematical constant pi (approximately 3.14159265359) into your calculation. This is useful for calculations involving circles, spheres, and trigonometry. The calculator uses a high-precision value of π for accurate results.

For powers, use the x² button for squares, xʸ or ^ for any power (enter base, click xʸ, enter exponent, press =). For roots, use √ for square roots, or use xʸ with fractional exponents (e.g., cube root of 8 is 8^(1/3)).

Hyperbolic functions (sinh, cosh, tanh) are analogs of trigonometric functions used in calculus, physics, and engineering. They appear in solutions to differential equations, special relativity, and descriptions of hanging cables (catenary curves).

The calculator uses JavaScript's built-in Math library, which provides double-precision floating-point arithmetic (approximately 15-17 significant digits). This is sufficient for most scientific and engineering applications, though very large or very small numbers may experience rounding at extreme precision levels.

Yes! You can use your keyboard for basic operations: numbers (0-9), operators (+, -, *, /), Enter or = for equals, Backspace to delete the last digit, and Escape or C to clear. This makes calculations faster and more convenient.