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Math Symbols and Their Names
Common math symbols and what each one means.
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73 cards
- +SymbolPlus: add
- −SymbolMinus: subtract
- ×SymbolTimes: multiply
- ÷SymbolDivided by: divide
- =SymbolEquals: is the same value as
- ≠SymbolIs not equal to
- <SymbolIs less than
- >SymbolIs greater than
- ≤SymbolIs less than or equal to
- ≥SymbolIs greater than or equal to
- ≈SymbolIs approximately equal to
- ≡SymbolIs identical to or congruent (mod) to
- ±SymbolPlus or minus
- ∓SymbolMinus or plus
- √SymbolSquare root (radical)
- ∛SymbolCube root
- πSymbolPi: about 3.14159, circumference over diameter
- ∞SymbolInfinity: unbounded, without end
- %SymbolPercent: out of 100
- ‰SymbolPer mille: out of 1,000
- °SymbolDegree: a unit of angle or temperature
- ′SymbolPrime: minutes, feet, or a related variable
- ″SymbolDouble prime: seconds, inches
- |x|SymbolAbsolute value of x
- !SymbolFactorial
- ΣSymbolSigma: sum of a series
- Π (capital pi)SymbolProduct of a series
- ΔSymbolDelta: change in
- ∂SymbolPartial derivative
- ∫SymbolIntegral
- ∮SymbolContour or closed-loop integral
- limSymbolLimit
- θSymbolTheta: commonly an angle
- λSymbolLambda: wavelength, eigenvalue
- μSymbolMu: mean of a population
- σSymbolSigma (lowercase): standard deviation
- ε (epsilon)SymbolA very small positive number in limits
- φSymbolPhi: the golden ratio (about 1.618) or an angle
- eSymbolEuler's number, about 2.71828
- iSymbolImaginary unit, where i² = −1
- ℝSymbolThe set of real numbers
- ℚSymbolThe set of rational numbers
- ℤSymbolThe set of integers
- ℕSymbolThe set of natural numbers
- ℂSymbolThe set of complex numbers
- ∈SymbolIs an element of
- ∉SymbolIs not an element of
- ⊂SymbolIs a subset of
- ∪SymbolUnion: in either set
- ∩SymbolIntersection: in both sets
- ∅SymbolEmpty set: no elements
- ∀SymbolFor all
- ∃SymbolThere exists
- ∴SymbolTherefore
- ∵SymbolBecause
- ⇒SymbolImplies
- ⇔SymbolIf and only if
- ∥SymbolIs parallel to
- ⊥SymbolIs perpendicular to
- ∠SymbolAngle
- △SymbolTriangle
- ≅SymbolIs congruent to
- ∼SymbolIs similar to
- ∝SymbolIs proportional to
- f(x)SymbolFunction f of x
- f⁻¹SymbolInverse function of f
- n!Symboln factorial: product of 1 to n
- a:bSymbolRatio of a to b
- ⌊x⌋SymbolFloor: greatest integer not above x
- ⌈x⌉SymbolCeiling: least integer not below x
- modSymbolModulo: the remainder after division
- ·SymbolDot: multiplication
- → (arrow)SymbolApproaches, or maps to
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