`(count`

*x M*`)`

which counts the number of occurrences of scalar`x`

in matrix`M`

.`(id`

*n*`)`

`(revId`

*n*`)`

`(upper`

*n*`)`

`(lowerIdx`

*n*`)`

`(lowerDiag`

*n*`)`

`(+\`

`)`

using only`value-op`

's (no control operations, i.e.`if`

,`while`

, etc.) for vectors only

2002-02-21