Checkpoint F

• the terms adverb and conjunction
• how to evaluate sentences with adverbs and conjunctions
• how to select subarrays from arrays
• how to modify subarrays in arrays
• boxed data
• hooks and forks
• tacit definition

• experiment with dyads { {. }. (negative numbers in the left arguments)
• look up a. in the J Dictionary and use it as the right argument in experiments with the dyads { {. }.
• experiment with the adverbs and conjunctions introduced so far
• experiment with the hook = <. , determine what it does and why it does it (hint: give it a name and apply it to 2 4 5.2 7 6.5)
• do the same with the hook = +