EL520XTBBK
Large 12 digit, 2 line LCD display
Direct Algebraic Logic (D.A.L.)
420 Functions
4 Modes: normal, stat, complex, & equation
8 Temporary & 4 formula memory buttons
3 Variable linear equation solvers
1 & 2 Variable statistics
Physical constants & metric conversions
Durable, gloss black finish with white accents
Protective hard case
Twin powered (solar with battery backup)