Not Match: Difference between revisions

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{{Built-in|Not Match|≢}} (sometimes '''Natch''') is the [[Negate|negation]] of [[Match]]. Thus, it returns 0 when its [[argument]]s match, and 1 when they do not. Like Match, it is a [[dyadic]] [[primitive function]].
{{Built-in|Not Match|≢}} (sometimes '''Natch''') is the [[Negate|negation]] of [[Match]]. Thus, it returns 0 when its [[argument]]s match, and 1 when they do not. Like Match, it is a [[dyadic]] [[primitive function]].
Some rendering engines (like Blink, the rendering engine of Chromium based browsers like Chrome, Edge, and Opera) tend to render <code>≢</code> as <code>≡/</code> if the selected font  does not have the <code>≢</code> character (U+2262), but does have <code>≡</code> (U+2261) and <code> ̸</code> (U+0338). This issue can be avoided by selecting [[fonts|a font which is more appropriate]] for APL.


{{APL built-ins}}
{{APL built-ins}}

Revision as of 13:48, 17 January 2020

≢

Not Match (≢) (sometimes Natch) is the negation of Match. Thus, it returns 0 when its arguments match, and 1 when they do not. Like Match, it is a dyadic primitive function.

Some rendering engines (like Blink, the rendering engine of Chromium based browsers like Chrome, Edge, and Opera) tend to render ≢ as ≡/ if the selected font does not have the ≢ character (U+2262), but does have ≡ (U+2261) and ̸ (U+0338). This issue can be avoided by selecting a font which is more appropriate for APL.


APL built-ins [edit]
Primitives (Timeline) Functions
Scalar
Monadic Conjugate ∙ Negate ∙ Signum ∙ Reciprocal ∙ Magnitude ∙ Exponential ∙ Natural Logarithm ∙ Floor ∙ Ceiling ∙ Factorial ∙ Not ∙ Pi Times ∙ Roll ∙ Type ∙ Imaginary ∙ Square Root ∙ Round
Dyadic Add ∙ Subtract ∙ Times ∙ Divide ∙ Residue ∙ Power ∙ Logarithm ∙ Minimum ∙ Maximum ∙ Binomial ∙ Comparison functions ∙ Boolean functions (And, Or, Nand, Nor) ∙ GCD ∙ LCM ∙ Circular ∙ Complex ∙ Root
Non-Scalar
Structural Shape ∙ Reshape ∙ Tally ∙ Depth ∙ Ravel ∙ Enlist ∙ Table ∙ Catenate ∙ Reverse ∙ Rotate ∙ Transpose ∙ Raze ∙ Mix ∙ Split ∙ Enclose ∙ Nest ∙ Cut (K) ∙ Pair ∙ Link ∙ Partitioned Enclose ∙ Partition
Selection First ∙ Pick ∙ Take ∙ Drop ∙ Unique ∙ Identity ∙ Stop ∙ Select ∙ Replicate ∙ Expand ∙ Set functions (Intersection ∙ Union ∙ Without) ∙ Bracket indexing ∙ Index ∙ Cartesian Product ∙ Sort
Selector Index generator ∙ Grade ∙ Index Of ∙ Interval Index ∙ Indices ∙ Deal ∙ Prefix and suffix vectors
Computational Match ∙ Not Match ∙ Membership ∙ Find ∙ Nub Sieve ∙ Encode ∙ Decode ∙ Matrix Inverse ∙ Matrix Divide ∙ Format ∙ Execute ∙ Materialise ∙ Range
Operators Monadic Each ∙ Commute ∙ Constant ∙ Replicate ∙ Expand ∙ Reduce ∙ Windowed Reduce ∙ Scan ∙ Outer Product ∙ Key ∙ I-Beam ∙ Spawn ∙ Function axis ∙ Identity (Null, Ident)
Dyadic Bind ∙ Compositions (Compose, Reverse Compose, Beside, Withe, Atop, Over) ∙ Inner Product ∙ Determinant ∙ Power ∙ At ∙ Under ∙ Rank ∙ Depth ∙ Variant ∙ Stencil ∙ Cut ∙ Direct definition (operator) ∙ Identity (Lev, Dex)
Quad names Index origin ∙ Comparison tolerance ∙ Migration level ∙ Atomic vector
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