Functions: 4-Basic functions with constant, memory and parenthesis in normal and scientific notation, Trigonometric and Logarithmic direct and inverse functions, conversion of coordinates system, statistical functions, Heron's formula. Programming capability: Up to 52 step with basic flow control (conditional and unconditional jump, pause for display/input). Scale functions: Line segment display, pitch designation, n division, log scale, decimal portion indication display, extension & reduction, scale reversal. Display: LCD with 8 digits and indicators. LCD scale of 15 cm Keybord: 40 keys plus On/Off switch. English manual: http://www.curtamania.com/curta/database/brand/casio/Casio%20FX-190%20and%20FX-191/more/Casio%20FX-190%20Operation%20Manual%20English-Spanish.pdf The calculator is in very good condition with no significant user traces. The calculator will be packed carefully.