Separatrix (from Latin, the feminine form of "separator") may refer to:

• Separatrix (decimal mark), an ⟨L⟩ mark or vertical bar ⟨|⟩ formerly used as a decimal point
• Separatrix, a proofreader's mark resembling the slash ⟨/⟩
• Separatrix in math, the boundary separating two modes of behaviour in a differential equation
• A mechanism for magnetically limiting a plasma, and hence for controlling the nuclear fusion in a tokamak; see divertor

See also

• Separator (disambiguation)

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