From Wikipedia, the free encyclopedia
Monadic operators
| Name
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Example
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Meaning
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Unicode
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| Roll
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?B
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Integer selected randomly from 1 through B
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| Ceiling
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⌈B
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Least integer greater than or equal to B
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2308
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| Floor
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⌊B
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Greatest integer less than or equal to B
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230A
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| Shape
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⍴B
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Number of components in each dimension of B
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9076
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| Not
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~B
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Logical: ~1 is 0, ~0 is 1
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| Absolute value
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B
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Magnitude of B
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| Index generator
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⍳B
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Vector of integers from 1 to B
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9075
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| Exponential
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*B
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e to the B power
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| Negation
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-B
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Changes sign of B
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| Monadic plus
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+B
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No change to B
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| Signum
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×B
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¯1 if B<0; 0 if B=0; 1 if B>0
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D7
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Dyadic operators
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Example
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Meaning
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Unicode
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| Less than
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A<B
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Comparison: 1 if true, 0 if false
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| Less than or equal
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A≤B
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Comparison: 1 if true, 0 if false
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2264
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| Equal
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A=B
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Comparison: 1 if true, 0 if false
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| Greater than or equal
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A≥B
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Comparison: 1 if true, 0 if false
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2265
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| Greater than
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A>B
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Comparison: 1 if true, 0 if false
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| Not equal
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A≠B
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Comparison: 1 if true, 0 if false
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2260
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