What's New:
* Equations can now be embedded in programs, using X2LINE or EQN→STO→PRGM. Equation lines can be plain, which means they push the equation object onto the stack, or they can be EVAL lines, which evaluate the equation in place. Equation lines can be toggled between plain and EVAL lines using the EVAL
function in PRGM mode.
* The CUSTOM menu didn't stick reliably, due to a bug introduced in 1.2. Fixed.