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Additional
Nabla symbol
English Wikipedia - The Free Encyclopedia
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Nabla symbol
∇
The nabla symbol
The
nabla symbol
is the
symbol
(∇). The name comes from the
Arabic
meaning arrow, or
Hebrew
word for a
harp
, called
nevel
, which had a similar shape. The symbol was first used by
William Rowan Hamilton
in the form of a sideways wedge: ⊲.
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