Vývojář: Benjamin Burton (5)
Cena: $1.99
Hodnocení: 0 
Recenze: 0 Napsat recenzi
Seznamy: 0 + 0
Body: 0 + 4 (5.0) ¡
App Store

Popis

Modular Arithmetic
A calculator for arithmetic modulo N. It lets you choose a fixed modulus, and then make lots of calculations without having to press a "mod" button again and again. It also:

- follows the order convention;
- supports arbitrarily large numbers;
- performs fast modular division and exponentiation;
- can show a full transcript of your calculation.

Modular arithmetic is a "calculus of remainders". It features throughout mathematics and computer science, and has applications from cryptography to barcodes to music.

The basic idea is that you choose a modulus N, and then reduce every number to one of the integers 0,1,2,...,N−1 according to what remainder it leaves when dividing by N.

For example, using a modulus of 17:

40 ≡ 6 (since 40 ÷ 17 leaves a remainder of 6);
17 ≡ 0 (since 17 ÷ 17 leaves no remainder at all).

Arithmetic follows these same rules. Still using a modulus of 17:

15 + 7 ≡ 5 (since 22 ≡ 5);
3 × 9 ≡ 10 (since 27 ≡ 10);
5 ^ 3 ≡ 6 (since 125 ≡ 6).

Subtraction and division behave in a way that complements addition and multiplication:

−1 ≡ 16 (since 16 + 1 = 17 ≡ 0);
1/2 ≡ 9 (since 9 × 2 = 18 ≡ 1);
4 - 7 ≡ 14 (since 14 + 7 = 21 ≡ 4);
7 ÷ 3 = 8 (since 8 × 3 = 24 ≡ 7).

There are no negative numbers or fractions: like −1 and 7 ÷ 3 in the examples above, these are also reduced to one of 0,1,...,N−1.

As usual, you cannot divide by zero. You also cannot divide if the right hand side has any common factors with the modulus. If we change our modulus to 10, then the following operations all generate errors:

3 ÷ 20 (since 20 ≡ 0);
7 ÷ 8 (since 8 and 10 have a common factor of 2).

Integers can be arbitrarily large. For instance, if we set our modulus to 2305843009213693951 (a Mersenne prime), then:

5 ^ 2305843009213693950 ≡ 1 (by Fermat's little theorem).

The code is written carefully, and is backed up by a thorough suite of 186 automated tests.

This app supports external keyboards, Siri Shortcuts, and (on iPad) Slide Over, Split View, and multiple windows.
Víc ↓
Ad

Snímky obrazovky

#1. Modular Arithmetic (iOS) Podle: Benjamin Burton
#2. Modular Arithmetic (iOS) Podle: Benjamin Burton
#3. Modular Arithmetic (iOS) Podle: Benjamin Burton
#4. Modular Arithmetic (iOS) Podle: Benjamin Burton
#5. Modular Arithmetic (iOS) Podle: Benjamin Burton

Novinky

  • Verze: 4.1
  • Aktualizováno:
  • Added dark and tinted icons for iOS 18.

Cena

  • Dnes: $1.99
  • Minimální: $1.99
  • Maximální: $1.99
Sledovat ceny
Ad

Vývojář

Body

0 ☹️

Hodnocení

0 ☹️

Seznamy

0 ☹️
  • Modular Arithmetic

Recenze

Buďte první, kdo bude hodnotit 🌟

Další informace

Modular ArithmeticModular Arithmetic Krátká adresa URL: Zkopírováno!
  • 🌟 Sdílet
  • App Store

Mohlo by se Vám také líbit

    • Arithmetic Calculators
    • iOS Aplikace: Vzdělávání  Podle: H Valeur
    • $1.99  
    • Seznamy: 0 + 0  Hodnocení: 0  Recenze: 0
    • Body: 8 + 0  Verze: 1.1   Arithmetic is the study of the basic operations of addition, subtraction, multiplication, and division. These operations are used in all other areas of mathematics, such as algebra, ...
        ⥯ 
    • Arithmetic
    • iOS Aplikace: Vzdělávání  Podle: Ivan Ramiscal
    • $4.99  
    • Seznamy: 0 + 0  Hodnocení: 0  Recenze: 0
    • Body: 0 + 1 (1.0)  Verze: 004.1   Introducing Arithmetic Your Ultimate Math Companion! Are you ready to sharpen your math skills while having fun? Say hello to Arithmetic, the app designed to make learning math ...
        ⥯ 
    • Arithmetic Workbook DX
    • iOS Aplikace: Vzdělávání  Podle: Gloding Inc.
    • Zdarma  
    • Seznamy: 0 + 0  Hodnocení: 0  Recenze: 0
    • Body: 0 + 0  Verze: 3.7.7   Competing the results of learning in the national ranking. Judgment is decided on score and points. Reviewing and redoing the workbook which finished are available. "Arithmetic ...
        ⥯ 
    • Arithmetic Play & Practice
    • iOS Aplikace: Vzdělávání  Podle: Shahul Hameed
    • Zdarma  
    • Seznamy: 0 + 0  Hodnocení: 0  Recenze: 0
    • Body: 0 + 0  Verze: 2.6   This app combines number puzzles, math games, and logic challenges, making math practice fun for kids and learners of all ages. Math Practice Practice addition, subtraction, ...
        ⥯ 
    • Arithmetic Wiz - Math Drills
    • iOS Aplikace: Vzdělávání  Podle: The Rocket Studio
    • * Zdarma  
    • Seznamy: 0 + 0  Hodnocení: 0  Recenze: 0
    • Body: 0 + 1 (2.0)  Verze: 3.1   - Great way for kids to do arithmetic drills the fun way. Let them become very good at adding, subtracting, dividing and multiplying numbers, which are important life skills. "Son, do ...
        ⥯ 
    • Arithmetic Means
    • iOS Aplikace: Vzdělávání  Podle: Science Education Institute
    • Zdarma  
    • Seznamy: 0 + 0  Hodnocení: 0  Recenze: 0
    • Body: 0 + 0  Verze: 1.0   The DOST Courseware is a locally-produced, all-original Filipino highly interactive multimedia educational application packages that are conceptualized, digitized and produced as ...
        ⥯ 
    • Arithmetic HD
    • iOS Aplikace: Vzdělávání  Podle: Kostakov Maxim
    • $1.99  
    • Seznamy: 0 + 1  Hodnocení: 0  Recenze: 0
    • Body: 14 + 0  Verze: 1.0.10   Learning basic math operations - addition, subtraction, multiplication, and division. Checking the knowledge of the multiplication table. ...
        ⥯ 
    • Arithmetic Worksheet
    • iOS Aplikace: Vzdělávání  Podle: 言 许
    • Zdarma  
    • Seznamy: 0 + 0  Hodnocení: 0  Recenze: 0
    • Body: 0 + 0  Verze: 1.1.1   1 Select the respondent, and also edit or add user information. 2 Set question types, including addition, subtraction, multiplication, division and mixing. 3 Set the number of ...
        ⥯ 
    • Math Flash - Fast Arithmetic
    • iOS Aplikace: Vzdělávání  Podle: Joel Boyd
    • Zdarma  
    • Seznamy: 0 + 1  Hodnocení: 0  Recenze: 0
    • Body: 6 + 2 (5.0)  Verze: 1.2.1   Math Flash : Build Math Skills with Precision & Speed! Tired of guesswork when it comes to learning math? Math Flash offers a focused, no nonsense approach to mastering multiplication,
        ⥯ 
    • CaQ Arithmetic Premium
    • iOS Aplikace: Vzdělávání  Podle: Manus Breuking
    • $1.99  
    • Seznamy: 0 + 0  Hodnocení: 0  Recenze: 0
    • Body: 0 + 0  Verze: 1.7.1   The full version of the Correct and Quick Arithmetic Premium app is available especially for schools. The app is free of advertising. With Family Sharing set up, up to six family ...
        ⥯ 
    • Math Games for Kids:Arithmetic
    • iOS Aplikace: Vzdělávání  Podle: 东波 关
    • Zdarma  
    • Seznamy: 0 + 0  Hodnocení: 0  Recenze: 0
    • Body: 3 + 0  Verze: 1.0.2   Help young learners master arithmetic with Arithmetic, the fun, intuitive mental math app designed specifically for elementary students! Perfect for kids aged 6 12, this app turns ...
        ⥯ 

Mohlo by se Vám také líbit

Vyhledávací operátory, které můžete použít v AppAggu
Přidat do AppAgg
AppAgg
Začněte – je to zdarma.
Registrace
Přihlásit se