#calculator
Robert Roth: #Calculator and #GTK4 • Tux Machines ⇨ http://www.tuxmachines.org/node/158014 #GNU #Linux #TuxMachines
recently discovered a great #calculator and #converter #tool #app... #yay!
Mustafa Buğra AKTAŞ offers a lot more useful tools.
Calculatormatik 1.15.260 Released!
Calculatormatik is a math tool that includes many calculators and converters.
Calculate/Convert everything with Calculatormatik.
Calculators/Converters:
Acceleration Converter
Adsense Code Converter for Blogger
Angle Converter
Area Calculator
Area Converter
Area of Room/Hall/Wall/Garden/Yard
Arithmetic Progression Calculator
Astronomical Time Converter
Auto Loan Calculator
Basal Metabolic Rate Calculator
Base64 to String
Bass Fishing Boat Speed Calculator
Binary to Number
Birthday Calculator
Blood Sugar Converter
Body Mass Index Calculator
Body Surface Area Calculator
Byte Converter
Calculator (Windows)
Capacitor Code Calculator
Character Number Calculator
Combination & Permutation Calculator
Compound Interest Calculator
Concentration Converter
Constants
Coordinate Draw
Coulomb's Law Calculator
Creatinine Calculator
Curtain Pleat Calculator
Date Calculator
Density Converter
Depreciation Calculator
Divisibility Calculator
Division Operation
DLL-OCX Registration
Download Time Calculator
Earth Year on Other Planets
Electric Capacitance Converter
Electric Charge Converter
Electric Conductance Converter
Electric Current Converter
Electric Field Strength Converter
Electric Inductance Converter
Electric Resistance Converter
Electrical Calculators
Electricity Consumption Calculator
Energy/Power Converter
Equation Solver
Expression Solver
Factorial Calculator
Fibonacci Calculator
Financial Lease Calculator
Flow Converter
Flow-Mass Converter
Force Converter
Fraction Calculator
Fraction Equation Solver
Frequency Converter
Fuel Consumption Calculator
Geometric Progression Calculator
Greatest Common Factor Calculator
Group Work Calculator
Growth Rate Calculator
Heat Index Calculator
Heat Transfer Coefficient Converter
Hex to ASCII
Hexadecimal to Decimal
Hijri to Gregorian
Hypotenuse Calculator
Illuminance Converter
Least Common Multiple Calculator
LED Resistor Calculator
Length/Distance Converter
Line of Sight Calculator
Linear Equation with 3 Unknowns Solver
Luminance Converter
Map Scale Calculator
Maximum Heart Rate Calculator
MD5 Hash Calculator
Mortgage Calculator
Multiplication Table
Natural Gas Consumption Calculator
nth Root Calculator
Numbers Converter
Numbers to Roman
Numbers to String
Ohm's Law Calculator
Painting Calculator
Pascal's Triangle Calculator
PC Running Time
Percentage % Calculator
Perimeter Calculator
PPI (Pixels Per Inch) Calculator
Prefix Converter
Pressure Converter
Prime Factor Calculator
Prime, Non-Prime Numbers
Product of Numbers N to N
Profit Calculator
Proportion Calculator
Quadratic Equation Solver
Radioactivity Converter
Random Lottery Numbers Generator
Random Password Generator
Relative Atomic Mass Calculator
Resistor Color Code Calculator
Restaurant Bill Calculator
Reverse the String
RGB to Hexadecimal
Save Units
Seconds to Degrees/Minutes/Seconds
Seconds to Hours/Minutes/Seconds
SHA256 Hash Calculator
Simple Interest Calculator
Simplifying Fractions Calculator
Simultaneous Equation Solver
Sine,Cosine,Tangent,Arctangent,Cotangent
Speed/Velocity Converter
Square Root, Cube Root Calculator
Stair Calculator
Stopwatch
Sum of Numbers N to N
Sum or Difference of Cubes
Temperature Converter
Torque Converter
Viscosity-Dynamic Converter
Viscosity-Kinematic Converter
Voltage Converter
Volume Calculator
Volume Converter
Water Consumption Calculator
Weight on Other Planets
Weight/Mass Converter
Wien's Displacement Law Calculator
Wind Chill Index Calculator
Zodiac Calculator
Soviet Scientific Calculator Gives Up Its Cold War-Era Secrets
Say what you want about Soviet technology, but you've got to admit there was a certain style to Cold War-era electronics. Things were perhaps not as streamlined and sleek as their Western equivalents, but then again, just look at the Nixie tube craze to see where collectors and enthusiasts stand on that comparison.
One particularly interesting artifact from the later part of that era was the lovely Elektronika MK-52 "microcalculator". [Paul Hoets] has done a careful but thorough teardown of a fine example of this late-80s machine. The programmable calculator was obviously geared toward scientific and engineering users, but [Paul] relates how later versions of it were also used by the financial community to root out banking fraud and even had built-in cryptographic functions, which made encrypting text easy.
The video below the break shows the teardown, detailing the mostly through-hole construction and the interesting use of a daughter-board, which appears to hold the high-voltage section needed to drive the 11-character VFD tube. The calculator appears to be very well cared for, and once reassembled looks like it would be up for another ride on a Soyuz, where once it served as a backup for landing calculations.
We love the look of this machine and appreciate [Paul]'s teardown and analysis. But you say that the Cyrillic keyboard has you stumped and you need a bilingual version of the MK-52? That's not a problem.
#retrocomputing #calculator #mk52 #programmable #rpn #russia #soviet