252-function pocket scientific calculator # Designed for scientific and advanced math calculations # 10-digit + 2 exponent LCD screen # Convenient VPAM (Visually Perfect Algebraic Method) Data entry # Calculates whole numbers as well as fractions # Statistical analysis including standard deviations and regression # Combinations and permutations # Enginnering symbols # Logical operations # 18 levels of Parentheses # Converts and calculates different numerical bases (Decimal, Binary, Hexadecimal, Octal) # Trigonometric functions # 6 constant memories # Powered by solar cells with internal Battery Back-up # Convenient and protective case