Variables and Constants

To assign a value to a variable use the = symbol or choose the variable to assign to with the x button in advanced mode. A variable name must only contain upper or lower case characters, or underscores.

x=5

example=82

Variables and constants can be used in any equation and are substituted for their assigned value. Variables and constants can be inserted using the x button.

6x+3

xy−3x+7y−21

다음은 항상 정의한 변수입니다.

_	이전 계산 결과
rand	[0,1] 범위의 임의의 수(읽을 때마다 달라짐)

The following constants are always defined.

Mathematics
e	Euler’s Number
π	Pi
τ	Tau
φ	Golden Ratio
Electromagnetism
c₀	Light Speed
е	Elementary Charge
Z₀	Impedance of Vacuum
μ₀	Permeability of Vacuum
ε₀	Permittivity of Vacuum
Atomic & Nuclear
h	Planck’s Constant
α	Fine-Structure Constant
mₑ	Electron Mass
mₚ	Proton Mass
Thermodynamics
k	Boltzmann Constant
mᵤ	Atomic Mass Unit
R	Molar Gas Constant
σ	Stefan-Boltzmann Constant
Nᴀ	Avogadro’s Number
Gravitation
G	Gravitational Constant
g	Earth Acceleration