PART 4: Memory and fractions

Part 4: memory and fractions. The calculator remembers numbers in nine memories, keeps the last answer, and stores a function on each of the keys D 1, D 2, and D 3. Next: chain calculations and fractions.

▶ Watch this step in the video (38:27)

Memory calculations

Example 14: memory calculations. STORE stores a number, RECALL recalls it, and ALPHA writes the letter of a memory in an expression.

Chain calculations

Example 15: chain calculations. The answer to one calculation can start the next calculation.

Fraction calculations

Example 16: fractions. The fraction key enters a fraction. 2nd F with the same key enters a mixed number. CHANGE turns the answer into a fraction or a decimal.