HP40gs Calculator Specifications

HP40gs CPU: 75Mhz ARM9.
Graphics Display Size: 131 x 64 pixels.
Text Display: 6 Lines  x 22 Columns.
Memory RAM: 256 KB.
Serial Ports: Both USB and Serial for connections
between HP40gs & HP39gs or HP40gs & HP40gs
and communicating with equipment such as PC,
datalogers, electronic scales, surveying equipment.
Power Supply: AAA x 4 + CR2032.
Size (lenght x width x thickness): 187 x 94 x 31 mm.
Weight Approximately: 249 g.

HP40gs Math features include:

• Algebra features: factorization, expansion, substitution, systems of linear equations, linear algebra and matrices, among others.
• Trigonometry (trigonometry functions / inverses and Hyperbolic functions / inverses, degrees, radians).
• Lists and sequences.
• Exponential and logarithmic functions.
• Permutations, combinations and factorials.
• HP equation solver.
• Metric / imperial conversions.
• +, – , x, ÷, √, 1 / x, + / -, In, eX, xy.
• yX, LOG, 10X, x2, %, π, n!
• Fractions.
• Degrees, radians, or grads mode.
• CAS system.
• Numeric integration.
• Symbolic integration.
• Numeric differentiation.
• Symbolic differentiation.
• Complex number functions.
• Taylor series.

HP40gs graphing features include:

• Expanded plotting possibilities—function, parametric, polar, conic, sequence and statistical plots.
• Function analysis—root, extremum, slope, area and intersection.
• Plotting with tracing and zooming.
• Graphic, symbolic and numeric views