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Built-in Functions / Lists and Matrices / Element Extraction /

Head

Usage

• Head[expr] gives the head of expr.


Notes

• Examples: Head[f[x]]LongRightArrow ; Head[a + b]LongRightArrow ; Head[4]LongRightArrow ; Head[x]LongRightArrow .
• See Section 2.1.1 and Section 2.1.1.
• New in Version 1.
Further Examples


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