RPN vs WP 34s

RPN-45 HD is a complete simulation of the scientific hand-held calculator HP-45 from 1973. Processing times and behavior have been carefully modelled after the original. Switch to the "Super-45" mode and watch the HP-45 do things never seen before. Features: • Photo-realistic look based on an existing device • Animated keys with adjustable click sound and visual feedback • All functions and operations of the HP-45 fully implemented • Supports "secret" timer. Use it as 12/100-hours timer or even as a chess clock. • Optional hyperbolic functions • Simulation of the HP-45's computation times (optional) • Correct wrong number entries by swiping left across the display • Cut/copy/paste display value • "Live" display of stack and all memory registers (in landscape mode) • Built-in manual • 30 selectable background images, even add your own • HP-91-like paper tape printer: - Supports MAN, ALL, and NORM modes - Quickly insert arbitrary text - Delete any line - Send tape via E-Mail or to any AirPrint-capable printer - Ribbon color black or blue - Optionally print negative results in red - Print stack and registers • Supports external hardware keyboard Turn on "Super-45" and enjoy a super-charged HP-45: • Complex numbers: available for almost all operations and functions • More memory: twice the number of memory registers. • "Continuous" stack and memory registers • Improved functions: - Raise any number to any power - Factorial of any number, incl. complex - Logarithm and square root of negative numbers - Preset timer with the iPad's real time - Chess clock mode • New functions: - Solve linear equations in two or three unknowns - Find the roots of quadratic and cubic equations - Statistics: normal distribution and correlation coefficient of paired variables - Linear regression, combinations, permutations - Logarithm to any base, incl. complex - Integer and fractional parts - Display rounding - Random numbers in a given range - Day of the week for any date between Jan 1, 0001 and Dec 31, 9999 - Easter date for any year between 1583 and 4099 - Support for Julian dates - Number of days between any two dates - Last Stack - Convert display value to hexadecimal - Percentage of sum - Register arithmetic includes sum registers and LAST x - Clear all registers - Backup registers in a protected area • Enhanced user interface: - Visual indicators for prefix keys and angular modes - Small values switch to scientific notation if required - Localized decimal point - Thousand's separator For more information and sample calculations visit cuveesoft.ch/rpn45/en WHAT USERS SAID: "A great simulation of the HP-45. Beautifully made, with a lot of attention to small details." "This is by far the best RPN calculator available for the iPad!" "This is one of the most accurate but also nicest looking emulators I have come across for the HP-45, or any vintage HP calculator for that matter." "This is exactly what I've been searching. My HP 45 packed up some time ago. Thank you so much!"

WP 34s is the most powerful and complete implementation of a classic RPN scientific calculator. Now available on iOS too (see the support site for other emulators and for the real stuff). The function set of the WP 34S is based on the most powerful programmable RPN calculators built so far and we expanded the set, incorporating programmer functions (base 2, 8 & 16), a fraction mode, probability distributions, a stopwatch... We also included numerous additional useful functions for mathematics, statistics, physics, engineering, programming, I/O, etc., such as: + Euler’s Beta and Riemann’s Zeta functions, Bernoulli and Fibonacci numbers, Lambert’s W, the error function, and the Chebyshev, Hermite, Laguerre, and Legendre orthogonal polynomials (no more need to carry heavy printed tables), + many statistical distributions and their inverses: Poisson, Binomial, Geometric, Cauchy-Lorentz, Exponential, Logistic, Weibull, Lognormal, and Gaussian, + programmable sums and products, first and second derivatives, solving quadratic equations for real and complex roots, + testing for primality, + integer computing in fifteen bases from binary to hexadecimal, + extended date and time operations and a stopwatch3 based on a real-time clock, + financial operations such as mean rate of return and margin calculations, + 88 conversions, mainly from old Imperial to universal SI units and vice versa, + 50 fundamental physical constants as accurate as used today by national standards institutes such as NIST or PTB, plus a selection of important constants from mathematics, astronomy, and surveying, + Greek and extended Latin letters covering the languages of almost half of the world’s population (upper and lower case in two font sizes), plus mathematical symbols. A beginner manual can be downloaded at http://sourceforge.net/projects/wp34s/files/doc/WP_34S_Beg_Guide.pdf and a full, very complete version at http://sourceforge.net/projects/wp34s/files/doc/Manual_wp_34s_3_1.pdf