Adds two numbers.

Subtracts two numbers.

Multiplies two numbers.

Divides two numbers. Errors on zero divisor.

Raises a to the power of b.

Square root. Errors on negative input.

Sine. Angle in degrees by default, or radians with unit: "radians".

Cosine. Angle in degrees by default, or radians with unit: "radians".

Tangent. Angle in degrees by default, or radians with unit: "radians".

Arcsine. Result in degrees by default, or radians with unit param.

Arccosine. Result in degrees by default, or radians with unit param.

Arctangent. Result in degrees by default, or radians with unit param.

Base-10 logarithm. Errors on non-positive input.

Natural logarithm (ln). Errors on non-positive input.

Absolute value.

Returns a mathematical, physical, or chemical constant. See enum values.

Sum of numbers.

Average (mean) of numbers.

Median of numbers.

Minimum of numbers.

Maximum of numbers.

Count elements.

Range (max - min) of numbers.

Sample variance (n-1). Set population: true for population variance (n).

Sample standard deviation (n-1). Set population: true for population (n).

What is X% of Y? e.g., 15% of 200 = 30

Percentage change from A to B. e.g., 50→80 = +60%

X is Y% of what? e.g., 30 is 15% of 200

Remainder of a / b. Errors on zero divisor.

Factorial of non-negative integer (n!). n > 170 overflows.

Evaluate a mathematical expression. PRIMARY tool for ALL math: +, -, *, /, %, ^. Functions: sqrt, sin, cos, tan, asin, acos, atan, log10, ln, log(x,base), abs, round, floor, ceil, min, max. Constants: pi, e, tau, phi, sqrt2, euler_mascheroni, c, g, G, h, k, R, NA, e_charge, m_e, m_p. Parentheses and scientific notation (1e6) supported. Use explicit operators: 2 * pi, not 2pi.

Convert between common units. Categories: length, weight, temperature, area, volume, time, speed, digital_storage.

Set global trig angle mode. Individual calls with unit param override this.

Get current trig angle mode.