RPN-45 HD

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!"