Scientific Calculator

Scientific Calculator

This calculator performs advanced mathematical operations including trigonometric functions (sin, cos, tan), logarithms (log base 10 and natural log), exponentials, factorials, and absolute values. Enter any number and select a function to see the result instantly, along with a quick-reference table of all trig values for your input.

How the Functions Work

Each function applies a standard mathematical operation to your input:

• sin(x), cos(x), tan(x) — trigonometric functions using degree input (internally converted to radians)
• log10(x) — base-10 logarithm; log10(100) = 2
• ln(x) — natural logarithm (base e); ln(e) = 1
• e^x — exponential function; e^1 = 2.71828
• x! — factorial; 5! = 120 (product of all positive integers up to x)
• |x| — absolute value; |-7| = 7

Example

Key Concepts to Keep in Mind

• Degree mode — this calculator uses degrees for trig functions, not radians (90 degrees = pi/2 radians)
• Domain restrictions — log and ln require positive numbers; factorial requires non-negative integers (max 170)
• tan(x) undefined — tangent is undefined at 90, 270, and similar angles where cosine equals zero
• Precision — results are rounded to 10 decimal places to avoid floating-point display artifacts

Tips

1. For quick reference, common trig values to memorize: sin(30) = 0.5, sin(45) = 0.707, sin(60) = 0.866
2. Use ln(x) for growth and decay problems in physics and biology; use log10(x) for decibel and pH calculations
3. The factorial function grows extremely fast; 20! already exceeds 2.4 quintillion
4. If you need radians, convert by multiplying degrees by pi/180 before entering the value