swissmicros DM42n计算器介绍及欣赏
DescriptionThe DM42n, a flagship RPN calculator inour lineup, is a faithful tribute to the iconic HP-42S, often considered thegreatest calculator ever created. Building upon the DM42, this improved versionfeatures significantly more RAM, a substantially faster CPU, and a modern USB-Cport.The DM42n is the most precise calculatoron the worldwide market — second to none — and uses the powerful and proven RPNlogic. The DM42n runs Free42, based on a decimal floating-point math libraryand IEEE 754-2008 quadruple precision decimal floating-point, encoding numbersin 16 bytes and giving 34 decimal places of precision with exponents rangingfrom -6143 to +6144.DM42n calculator features[*]34-digit mantissa for ultimate handheld precision
[*]Uses proven RPN logic
[*]Programmable
[*]Alphanumeric display
[*]Custom program labels execute upon a single key press
[*]Solver
[*]Integration
[*]Matrix operations
[*]Complex numbers support
DM42n hardware features
[*]A USB-C connector for complete and easy calculator contents backup
[*]Sleek and sturdy hardware based on a stainless steel shell
[*]Multi-line program editor
[*]Fast STM32U5 CPU
[*]Single coin-cell operation
[*]Low power - long battery life
Compare to othermodelsCalculatorComparison DM41X, DM42n/DM42, DM32
User manualPlease find theonline DM42 User ManualSpecifications
AspectDetails
Constructioncase made from stainless steel, matte black PhysicalVapour Deposition (PVD) coated and laser engraved
SoftwareOpen Source Free42 running on SwissMicros OperatingSystem (no emulation)
Processorultra-low-power ARM® Cortex-M33®, at max. 160 MHz
Flash memory64 MBit additional flash
Floating Point StandardIEEE 754-2008 128-bit floating point precisionimplementation
ISO ConformityISO/IEC TR 24732
Display typemonochromatic ultra-high contrast (14:1) transflectivememory LCD display
Display resolution400 × 240 pixels
Display active area58.8 × 35.28 mm
Display dot pitch147 × 147 µm
Connectivity (PC)USB-C, connects as USB mass storage device
Connectivity (IR)IR Transmitter compatible with the original HP-82240A/Bprinter
Battery type1 × CR2032 3V lithium coin cell
Size77 × 144 × 12 mm
Weight180 g
Warranty5 years
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