calculator - powerful, good, cheap. scientific, student and engineer calculator, to iPhone app for iPhone and iPad

4.3 ( 4413 ratings )

Utilities Education
Developer: john peng

3.99 USD

Current version: 1.0, last update: 7 years ago
First release : 07 Aug 2015
App size: 756.26 Kb

1. More accurate than PC calculator：
This calculator: sin(179.9999,9999,9999,9999,9999,9999,9999,9) = 1.7453,2925,1994,3295,7692,3691E-33.
PC calculator: sin(179.9999,9999,9999,9999,9999,9999,9999,9) = 1.7453,2892,0160,….E-33.
Ti-80 Plus: sin(179.9999,9999,9999,9999,9999,9999,9999,9) = 1.7453,2925E-33.

2. More powerful than PC and most student， commercial calculators：
This calculator: 6666666666666666^888888 = 3,9167,0185,4011,6629,1081,8672E14065658.
PC calculator: 6666666666666666^632. output: overflow.
Ti-80 Plus: 6666666666666666 ^7. output: ERR: OVERFLOW.

3. can calculate any complicated expression:
(((((ln(87) + e^3) * 56 - sin(69)) * 4!) / 5^(1/2) + pi) * 2.8^1.8) / 3.5 = 2.6890,8945,9852,58E4.
(((((ln(87) + e^3) * 56 - sin(69)) * 4!) / 5^(1/2) + pi) * 2.8^1.8) / 3.5 = 2.6890,8945,9852,5758,958E4.
(((((ln(87) + e^3) * 56 - sin(69)) * 4!) / 5^(1/2) + pi) * 2.8^1.8) / 3.5 = 2.6890,8945,9852,5758,9584,0598E4.

4. Math and logic calculating, bin-dec-hex data converting.

5. Precisely output 15, 20, 25 digits.

6. Prohibit illegal inputs.

7. Prohibit mean-less inputs.

8. Error check in running time.

9. Big button, easy to use.

10. Undo input.

11. easy-read result (result in sections).

Calculating Priority:

Math:
1) +, -.
2) *, /.
3) +/-.
4) sin(x), cos(x), tan(x), asin(x), acos(x), atan(x), y^2, y^3, y^(1/2), y(1/3), y^(-1), y^(1/n), y^x, 10^x, e^x, n!.

Logic:
1) or, and, xor.
2) LShift, RShift, LRShift, RRShift.
3) nor.

For same priority, calculating from left side to right side if possible.
For different priority, the higher priority calculate first.
In logic calculating mode, the data after leftShift, rightShift (righShift), LRShift, RRShift is decimal even in bin or hex mode.

Design for: iPhone 6, iPhone 6 plus, iPhone 5, iPhone 5s, iPhone 4s, resizable iPhone (iOS version: 7.1, 8.1, 8.2, 8.3, 8.4).
Please click "Related" to download more good apps. You can download same apps for iPad. Also, you can go to App Store to download same apps for Apple computers.
Support: appleappbug@yahoo.com. it’s your responsibility to use this calculate.