Best Pocket Scientific Calculator

"The Casio fx-260 Solar II scientific calculator is an attractive choice for students and professionals. It features a 10-digit display that is large enough to handle decimal, trigonometry, exponential, and statistical functions in addition to hundreds of other math functions. True to its name, the fx-260 Solar II is solar-powered, allowing you computational access without the hassle of losing power in times of greatest need. This calculator comes in a light-weight, portable case."

fx-260SOLAR Manual[support.casio.com]
fx-260SOLAR Training Guide[www.casioeducation.com]
https://www.casio.com/products/calculators/fraction-and-scientific/fx-260-solar-ii