this

this, with a Joycean ring,

    may refer to anything —>
(Shh... it can’t be null, but that can change:)
Reserved or free, she’s malleable too<!—
Derivatives aren’t always linear transformations;
take and make—

        that’s how we differentiate from

EXERCISES

1. How punny is this post?

HINTS FOR SELECTED EXERCISES

1. this is strange!