Program name: HERO
written by Patrick D. Rockwell

Size on computer disk: 139 bytes.
Size on HP 48GX calculator: 189 bytes.


This program uses Hero's formula to compute area of a triangle. Hero's formula is given
below.

Let a, b, and c be the length of each side of a triangle. Let s=(a+b+C)/2
then AREA = SQRT(s*(s-a)*(s-b)*(s-c)) where sqrt(some value or formula) is the square
root of that value or formula.

To use, enter 3 numbers representing the length of each side of the triangle, then press
the soft key labled "HERO" to get the area.

NOTE: If a, b, and c are the lengths of each side of the triangle, and if a+b<c where c is
the longest side, and a is the shortest side, then Hero's formula will yield a complex
number.