# Wolfram alpha modulo inverzný

Wolfram|Alpha brings expert-level knowledge and capabilities to the broadest possible range of people—spanning all professions and education levels.

Purchasing information » Website » Discuss this device on Wolfram Community » The Wolfram Discrete Mathematics Course Assistant is powered by the Wolfram|Alpha computational knowledge engine and is created by Wolfram Research, makers of Mathematica—the world's leading software system for mathematical research and education. 1 day ago · $\begingroup$ @Peter I'm not sure, maybe wolframalpha does not work in exactly the same way as the regular "Wolfram Mathematica". The first expression behaves as expected if the inverse is correctly computed, and considering the distinction between "*" and "." $\endgroup$ – PierreCarre 11 mins ago A modular inverse of an integer (modulo) is the integer such that A modular inverse can be computed in the Wolfram Language using PowerMod [ b, -1, m ]. Every nonzero integer has an inverse (modulo) for a prime and not a multiple of. For example, the modular inverses of 1, 2, 3, and 4 (mod 5) are 1, 3, 2, and 4. Get the free "Inverse of an integer x modulo n" widget for your website, blog, Wordpress, Blogger, or iGoogle.

04.03.2021

Wolfram|Alpha brings expert-level knowledge and capabilities to the broadest possible range of people—spanning all professions and education levels. Get the free "Inverse of a 3x3 matrix A modulo n" widget for your website, blog, Wordpress, Blogger, or iGoogle. Find more Widget Gallery widgets in Wolfram|Alpha. Wolfram|Alpha brings expert-level knowledge and capabilities to the broadest possible range of people—spanning all professions and education levels. $\begingroup$ Apparently it gets confused and just looks at "inverse of 17," giving you 1/17.

## Mod[m, n] gives the remainder on division of m by n. Mod[m, n, d] uses an offset d .

Knowledge-based, broadly deployed natural language. 3/10/2021 $\begingroup$ It's not hard to write the code to calculate the multiplicative inverse (as I did in this answer to another question), but if you just want to calculate it one time for something you're working on, it's a built in function in various languages. For example, use PowerMod[17,-1,31] in Mathematica or Wolfram Alpha.

### ModularInverse is also known as modular multiplicative inverse. Integer mathematical function, suitable for both symbolic and numerical manipulation. Typically used in modular arithmetic and cryptography.

For example, the modular inverses of 1, 2, 3, and 4 (mod 5) are 1, 3, 2, and 4. Get the free "Inverse of an integer x modulo n" widget for your website, blog, Wordpress, Blogger, or iGoogle. Find more Mathematics widgets in Wolfram|Alpha. ModularInverse is also known as modular multiplicative inverse. Integer mathematical function, suitable for both symbolic and numerical manipulation. Typically used in modular arithmetic and cryptography.

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Here are problems and the commands that are typed to solve them with Wolfram Alpha. (1) Reduce 13456 modulo 147: 13456 mod 147 (2) Find a solution to 14x+ 17y = 1 in Z: solve 14*x + 17*y = 1 in integers (3) Find the gcd of 1457 and 4277: gcd(1457,4277) (4) Compute 145 mod 29: 14^5 mod 29 (5) Find the inverse of 14 mod 29 (that is, solve 14x 1 Since this is tagged wolfram-mathematica I assume you are asking in the context of Mathematica, in which case there is a built-in function to do this: PowerMod[9,-1,m] This will give you the inverse of 9, modulo m, for whatever value of m you want. Table[PowerMod[9,-1,m],{m,2,1000}] will produce: I had to rely on Wolfram Alpha instead. My ID problem is solved but instead I am left with a question on how I can calculate a modular multiplicative inverse with PHP. PS: I love to type, apparently. [edit] This makes the 2nd time Reddit has double posted on me in the past week. Euclidean division is usually fast enough for applications in cryptography.

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This calculator computes the inverse matrix of the input matrix. Matrix Pseudo-Inverse using LU Decomposition? Modular Robotics. Battery Cubelet.

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### Mod[m, n] gives the remainder on division of m by n. Mod[m, n, d] uses an offset d.

For example, the modular inverses of 1, 2, 3, and 4 (mod 5) are 1, 3, 2, and 4. Get the free "Inverse of an integer x modulo n" widget for your website, blog, Wordpress, Blogger, or iGoogle. Find more Mathematics widgets in Wolfram|Alpha. ModularInverse is also known as modular multiplicative inverse. Integer mathematical function, suitable for both symbolic and numerical manipulation.