Calculator SR1 pro vs HiPER Calc Pro Usage & Stats

New! This app is a photorealistic simulation of the "Schulrechner SR1", a pocket calculator made in GDR (German Democratic Republic / East Germany). Compared to the original calculator only the frames around the entire device and around the display were reduced for reasons of space. With the "Calculator SR1 pro" you enjoy a completely ad-free version of the app and support the further development of this project. The app comprises numerous of frequently used functionalities and obeys the "order of operations". The keys give optical (key color), acoustic (key sounds) and haptic (vibration of the device) feedback. Furthermore, the back and an interior view of the original calculator can be displayed (completely without function 😀). The "Schulrechner SR1" was a pocket calculator with a liquid crystal display (LCD), which was manufactured by VEB Mikroelektronik "Wilhelm Pieck" Mühlhausen (Publicly Owned Operation Microelectronics "Wilhelm Pieck" in Mühlhausen / Thuringia). The SR1 was subsidized for students and identically distributed on trade as "MR 609". It was produced from the early 1980s and used in schools since the school year 1984/85. The books for teaching mathematics in the GDR referred to this calculator. Features: • Basic arithmetic operations: Addition, subtraction, multiplication, division and the calculation of powers (the order of operations is observed!) • Root, square, percent and reciprocal functions • Trigonometric functions: sine (sin), cosine (cos), tangent (tan), as well as the corresponding inverse functions arcsine (arcsin), arccosine (arccos) and arctangent (arctan); angles can be entered in degrees (DEG), radians (RAD) or gradian (gon) (GRD) • Logarithmic functions: Natural logarithm (ln) and commomn logarithm (lg), as well as their inverse functions (i.e. power to base e and 10, respectively) • π (Pi) • Memory functions • Exponential representation Operation notes: • By tapping the display, the displayed value is copied to the clipboard (and is available for further use in other apps). • Swiping from the left edge to the inside, the menu is displayed: Here you can find among other information the settings for the sounds played by the app and the vibration. The "Calculator SR1" is part of a series of historical pocket calculators: The two others are Calculator MR 610 and Bolek Calculator. Use the Calculator SR1 pro as your daily tool for all your calculations! Languages of this app: English, Spanish, French, Italian, Portuguese, German

Google Play Store
Free
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Usage Rank

#7,080

HiPER Calc Pro

Excellent scientific calculator with symbolic algebra, graphing, equations, integrals and derivatives. The calculator has globally more than 40 million downloads and 200 000 five-star ratings. You can write expressions in a natural way and watch your calculations. The result is displayed as a number, simplified expression etc. The calculator has several layouts suitable for various screen sizes: - "pocket" for small devices - "compact" for smartphones (in portrait and landscape orientation) - "expanded" for tablets A multiline display can be turned on in tablets to show the complete history of calculations and to provide access the previous results. Users can choose from several high-quality themes. The calculator has many functions, such as: - up to 100 digits of significand and 9 digits of exponent - basic arithmetic operations including percentage, modulo and negation; - fractions and mixed numbers; - periodic numbers and their conversion to fractions; - unlimited number of braces; - operator priority; - repeated operations; - equations (with one or more variables, systems of equations) - variables and symbolic computation; - derivatives and integrals; - graphs of functions, equations, integral area and limits; 3D graphs; - calculation details - extended information about a calculation like all complex roots, unit circle etc.; - matrices and vectors - statistics - regression analysis - complex numbers - conversion between rectangular and polar coordinates - sums and products of series - limits - advanced number operations such as random numbers, combinations, permutations, common greatest divisor, etc.; - trigonometric and hyperbolic functions; - powers, roots, logarithms, etc.; - degrees, minutes and seconds conversion; - fixed point, scientific and engineering display format; - display exponent as SI units prefix; - memory operations with 10 extended memories; - clipboard operations with various clipboard formats; - result history; - binary, octal and hexadecimal numeral systems; - logical operations; - bitwise shifts and rotations; - haptic feedback; - more than 90 physical constants; - conversion among 250 units; - Reverse Polish notation. The calculator has many settings to manage the full screen mode, decimal and thousand separators, etc. All features are described with a built-in help.