Radical symbols, gradient symbols, and logarithms can have one or two operands. Integrals and other symbols on the Large and Calculus pages can have one, two, or three operands.
Figure 1. Operands
You can add operands to these elements without starting over.
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Click or select anywhere in the expression with the element.
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Click Add Operand on the Large or Calculus page. A question mark prompt appears where you specify the new operand.