Scientific Calculator
Advanced math calculations
Function Reference
Trigonometric Functions
- sin, cos, tan: Basic trig functions
- asin, acos, atan: Inverse trig functions
- DEG/RAD: Degree or radian mode
Logarithmic Functions
- log: Common logarithm (base 10)
- ln: Natural logarithm (base e)
Mathematical Functions
- √: Square root
- x^y: Power (x raised to y)
- x!: Factorial
- |x|: Absolute value
Constants
- π: Pi (3.14159...)
- e: Euler's number (2.71828...)
How the Scientific Calculator Works
Our online scientific calculator replicates the functionality of a physical scientific calculator right in your browser. It supports two modes: Basic for standard arithmetic and Scientific for advanced mathematical operations. The calculator processes expressions following the standard order of operations (PEMDAS/BODMAS), ensuring accurate results for complex calculations.
The scientific mode provides trigonometric functions (sin, cos, tan and their inverses), logarithmic functions (log base 10 and natural logarithm ln), square root, power and exponent operations, factorial, and mathematical constants π and e. You can toggle between degrees and radians for angle-based calculations, and use memory functions (MC, MR, M+, M−) to store and recall intermediate results.
Key Functions Explained
Logarithmic: log (base 10), ln (natural log)
Powers: x², xⁿ, √x
Constants: π ≈ 3.14159, e ≈ 2.71828
Trigonometric functions relate angles to side ratios in right triangles. Sin gives the ratio of opposite to hypotenuse, cos gives adjacent to hypotenuse, and tan gives opposite to adjacent. These are essential in physics, engineering, architecture, and navigation. Inverse functions (asin, acos, atan) find the angle when you know the ratio.
Logarithmic functions are the inverse of exponentiation. Log base 10 answers "to what power must 10 be raised to get this number?" while ln (natural log) uses base e ≈ 2.71828. Logarithms are used in measuring earthquake intensity (Richter scale), sound levels (decibels), and pH in chemistry.
Memory functions let you store a value (M+), subtract from memory (M−), recall stored values (MR), and clear memory (MC). This is invaluable for multi-step calculations where you need to reference intermediate results without re-entering them.
Frequently Asked Questions
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