In certain contexts such as higher education, scientific calculators have been superseded by graphing calculators, which offer a superset of scientific calculator functionality along with the ability to graph input data and write and store programs for the device. There is also some overlap with the financial calculator market.
Modern scientific calculators generally have many more features than a standard four or five-function calculator, and the feature set differs between manufacturers and models; however, the defining features of a scientific calculator include:
floating point arithmetic
logarithmic functions, using both base 10 and base e
trigonometric functions (some including hyperbolic trigonometry)
exponential functions and roots beyond the square root
quick access to constants such as pi and e
In addition, high-end scientific calculators will include:
hexadecimal, binary, and octal calculations, including basic Boolean math
statistics and probability calculations
programmability — see Programmable calculator
conversion of units
While most scientific models have traditionally used a single-line display similar to traditional pocket calculators, many of them have at the very least more digits (10 to 12), sometimes with extra digits for the floating point exponent. A few have multi-line displays, with some recent models from Hewlett-Packard, Texas Instruments, Casio, Sharp, and Canon using dot matrix displays similar to those found on graphing calculators.
- User defined, multi-variable functions; easily expand the built-in functions by defining your own User Functions with up to ten variables
- Multiple User Functions plotting with zoom / pan capabilities
- Detailed and educational interactive HELP displays with active links to applicable WEB articles
- User defined constants
- Full, true 64 bit precision calculations
- Decimal, hexadecimal and binary number entry bases
- Rich set of mathematical functions
- Multiple predefined useful constants
- Multi-color arithmetic expression editing line
- Radians / degrees units selector
- Previous calculation selection for editing
- Syntax errors indicators
- Listing of history calculations with exporting capability
- Copy / Paste last calculation result
The User Interface is simple, clear and intuitive; it comprises several panels in the following hierarchy:
- Calculations History listing
- Multiple HELP panels for different Main panel features
- Extra Constants selection
- Extra Functions selection (including User Functions)
- User Functions Display (plotting) set-up
- Multiple User Functions X-Y plots panel
The “EduCalculator” is a new product. Currently (January 2013), only this free release was published. It is currently Ad-Free, with all functionality available to the user (except for limitations on the number of active User Functions and User Constants). Enjoy!
Set you phone or tablet by your computer and let this app help you through the beginning steps. More apps like this are on the way! This is the first app in a series of Pure Java Android programming video apps to be releases.
You can also download the companion app - PI Quick Calculator - That is used in these programming videos from http://play.google.com/store/apps/details?id=com.programmersinstitute.androidfirstprogram
More from developer
To celebrate the sales during the first week, the app will have a 99 cents (USD) special price ONLY during this week!
Create awesome Pixeroids using your pictures and really cool artwork with generative art.
Share your photos with your friends and unlock bonus artwork to use.
Really easy to generate Pixeroids that you can use as desktop wallpaper, social network profile picture, print posters or make really original gifts:
1) Choose a picture.
2) Select the artwork you want to use (and not).
3) Watch you Pixeroid being built.
4) Pause anytime to export, share and even change artwork settings.
5) Continue to resume building, and you Pixeroid will get even more and more detailed.
Share you Pixeroids and have fun!
Coming soon in the next update:
Two higher resolution options (other than the default 1024x768).
More artwork to choose from.
Are you learning Chinese? Having trouble with the Mandarin tones?
This game was born when I moved to Beijing and decided to start learning Chinese. One of the first obstacles when I started school was definitely the Mandarin tones, and correctly identifying them. So, I had the idea of building this easy to play learning game, as it will be useful for anyone learning Chinese and wishing to learn the tones, and practice in a fun way.
While trying to build the game with my own voice, I figured out quickly it would be a disaster without a real Chinese speaker's voice. So, I asked my Chinese teacher to help (and record all the possible words, more than 1500). That's her voice you hear in the game (special thanks!).
Playing the game is very simple, and you will practice the tones and will get better along the way. Listen to the sounds, and tap the tone you think is correct, using the 4 buttons at the bottom of the screen. Correct answers get more points (bottom right), and the more you advance, the more points you get per word. Wrong answers take one life (bottom left). The quicker you react, the more points you can also get. A bonus multiplier sits on top of the score, but will decrease each second after the phrase stops playing. If you want to replay a sound, just tap its word, but you will lose the bonus if you do so. You get extra lives after you pass a certain score, just check when you will get the next extra life (bottom left). The more you advance, the bigger the phrases are, having up to 4 words. Keep in mind that those are generated randomly out of all the possible pinyin sounds, so they don't need to mean anything.
Have fun and improve your Mandarin skills!