HP 30s Calculator

Constant mode. Enhanced constant mode lets you change any combination of numbers, variables, functions and operators. Decimal-to-fraction conversion function. Equation solver function. Helpful in scientific applications requiring trig and math functions. Great for sine, cosine, tangent, exponential, natural log and antilog functions. Enter operators and data in the order that would solve the problem as you would on paper. 2-line LCD display to show both operations and results-up to 10 digits plus 2-digit exponent per value. Fixed, floating, scientific and engineering notation. Algebraic entry system with standard operator priorities. Enhanced constant feature and editable command line. Percentages and fractions-both proper and improper. Physical constants and units. Pi, trig and hyperbolic trig. Probability and factorials. Powers, logs, roots and exponential functions. Polar/rectangular and angle conversions (deg/rad/grad). Hours and angle conversions. Statistics: 1- or 2-variable, regression, editable data sets. Multiple-variable expression storage and evaluation. Quadratic solver. Linear systems solver. The HP 30s combines value, higher-math power and sleek convenience in one stylish package for today's discerning student. Ideal for General Math, Pre-Algebra, Algebra, Trigonometry, Statistics, Geometry, Biology, Chemistry, Physics, earth sciences and more. With a 2-line display, over 250 built-in functions and 10 memory registers, the HP 30s is great for math and science students of all ages. Comes with 2 additional interchangeable color faceplates. Permitted for use on SAT Reasoning Test, SAT Subject Tests in Mathematics Level 1 and Mathematics Level 2, ACT, PSAT/NMSQT, AP Chemistry/Physics, PLAN, EXPLORE. Percentages and fractions-proper and improper. Physical constants and units. Angle modes and polar/rectangular conversions. Trig, hyperbolics and probabilities. Powers, roots, logs and exponentials. Multiple-variable expression storage and evaluation. 1- and 2-variable statistics, with regression. Linear systems and quadratic solvers.