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401 Functions S-V.P.A.M. ~super visually perfect algebraic method Fraction Calculations Combination and permutation Statistics (STAT-data editor, Standard deviation, Regression analysis) 9 Variables Multi-replay Equation calculations, Vector calculations, Differential calculations, SOLVE function Integration calculations Base-n calculations/ conversions Complex number calculations Logical operations Matrix calculations Engineering symbol calculations 40 Scientific calculations 40 Matrix conversions (20 conversion pairs) CALC memory 2-Line Display 10+2 Digits Dot Matrix Plastic Keys Comes with slide-on hard case Button-type Battery 2-way Power (Solar + Battery)