Quad Equal
Quad Equal is a Monadic operator with an ambivalent operand
Operator Quad Equal means

Key

      'Banana' {⍺ ⍵}⌸ 3 1 4 1 5 9
┌─┬─────┐
│B│3    │
├─┼─────┤
│a│1 1 9│
├─┼─────┤
│n│4 5  │
└─┴─────┘
      'Banana' {⍺,+/⍵}⌸ 3 1 4 1 5 9
B  3
a 11
n  9     
      'Banana' {⍺ ⍵}⌸ 1 2 3 4 5 6
┌─┬─────┐
│B│1    │
├─┼─────┤
│a│2 4 6│
├─┼─────┤
│n│3 5  │
└─┴─────┘
      {⍺ ⍵}⌸ 'Banana'  ⍝ (same as above)
┌─┬─────┐
│B│1    │
├─┼─────┤
│a│2 4 6│
├─┼─────┤
│n│3 5  │
└─┴─────┘

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