Description: Compute an expression with each member of a sequence. Syntax: A.(x,…) A.() Return A itself. Note: The funsequence, member, expression
Description: Attach a computation to a channel and return the original channel. Syntax: ch.(x) ch.() Return the channchannel, expression, attached operation
Description: Compare two expressions or two sequences. Syntax: cmp(x, y) When comparing two expressions x and y, return compare, expression, sequence