And, you know, economists have all kinds of fancy formulas and mathematical equations to measure the exact moment that the recession ended.

WHITEHOUSE: Helping Small Businesses Grow and Create New Jobs

The large LCD vividly displays mathematical formulas and charts and is highly useful for understanding the relationships between equations and graphical data because it can display them both at the same time.

ENGADGET: Casio's touchscreen graphing calculator arrives in 2013, makes the TI-84+ look dated