Can some one tell me what this notation means 𝑀: N^|𝑋| → 𝑅
$begingroup$
M stands for a mechanism and N is for all possible natural numbers. I cannot figure out is X the size of the data set or not ?
differential
$endgroup$
add a comment |
$begingroup$
M stands for a mechanism and N is for all possible natural numbers. I cannot figure out is X the size of the data set or not ?
differential
$endgroup$
1
$begingroup$
Give a bit of context making clear what "mechanism" means, please.
$endgroup$
– kimchi lover
Dec 6 '18 at 14:47
$begingroup$
Here's what I see. Please use MathJax (a type of $LaTeX$).
$endgroup$
– Shaun
Dec 6 '18 at 14:50
$begingroup$
Detexify will help you find the code for certain symbols in $LaTeX$.
$endgroup$
– Shaun
Dec 6 '18 at 14:53
$begingroup$
I figured it out. I will use MathJax next time while posting questions :)
$endgroup$
– Neera
Dec 6 '18 at 15:02
add a comment |
$begingroup$
M stands for a mechanism and N is for all possible natural numbers. I cannot figure out is X the size of the data set or not ?
differential
$endgroup$
M stands for a mechanism and N is for all possible natural numbers. I cannot figure out is X the size of the data set or not ?
differential
differential
asked Dec 6 '18 at 14:44
NeeraNeera
1
1
1
$begingroup$
Give a bit of context making clear what "mechanism" means, please.
$endgroup$
– kimchi lover
Dec 6 '18 at 14:47
$begingroup$
Here's what I see. Please use MathJax (a type of $LaTeX$).
$endgroup$
– Shaun
Dec 6 '18 at 14:50
$begingroup$
Detexify will help you find the code for certain symbols in $LaTeX$.
$endgroup$
– Shaun
Dec 6 '18 at 14:53
$begingroup$
I figured it out. I will use MathJax next time while posting questions :)
$endgroup$
– Neera
Dec 6 '18 at 15:02
add a comment |
1
$begingroup$
Give a bit of context making clear what "mechanism" means, please.
$endgroup$
– kimchi lover
Dec 6 '18 at 14:47
$begingroup$
Here's what I see. Please use MathJax (a type of $LaTeX$).
$endgroup$
– Shaun
Dec 6 '18 at 14:50
$begingroup$
Detexify will help you find the code for certain symbols in $LaTeX$.
$endgroup$
– Shaun
Dec 6 '18 at 14:53
$begingroup$
I figured it out. I will use MathJax next time while posting questions :)
$endgroup$
– Neera
Dec 6 '18 at 15:02
1
1
$begingroup$
Give a bit of context making clear what "mechanism" means, please.
$endgroup$
– kimchi lover
Dec 6 '18 at 14:47
$begingroup$
Give a bit of context making clear what "mechanism" means, please.
$endgroup$
– kimchi lover
Dec 6 '18 at 14:47
$begingroup$
Here's what I see. Please use MathJax (a type of $LaTeX$).
$endgroup$
– Shaun
Dec 6 '18 at 14:50
$begingroup$
Here's what I see. Please use MathJax (a type of $LaTeX$).
$endgroup$
– Shaun
Dec 6 '18 at 14:50
$begingroup$
Detexify will help you find the code for certain symbols in $LaTeX$.
$endgroup$
– Shaun
Dec 6 '18 at 14:53
$begingroup$
Detexify will help you find the code for certain symbols in $LaTeX$.
$endgroup$
– Shaun
Dec 6 '18 at 14:53
$begingroup$
I figured it out. I will use MathJax next time while posting questions :)
$endgroup$
– Neera
Dec 6 '18 at 15:02
$begingroup$
I figured it out. I will use MathJax next time while posting questions :)
$endgroup$
– Neera
Dec 6 '18 at 15:02
add a comment |
1 Answer
1
active
oldest
votes
$begingroup$
First: $|X|$ is probably the number of elements of $X$, so let's assume that's true and set $k = |X|$. Then $N^{|X|}$ is the set of $k$-tuples of natural numbers
If $M:Bbb{N}^{|X|}rightarrow Bbb{R}$, then $M$ is a function that maps a $k$-tuple of natural numbers into the set of real numbers.
$endgroup$
add a comment |
Your Answer
StackExchange.ifUsing("editor", function () {
return StackExchange.using("mathjaxEditing", function () {
StackExchange.MarkdownEditor.creationCallbacks.add(function (editor, postfix) {
StackExchange.mathjaxEditing.prepareWmdForMathJax(editor, postfix, [["$", "$"], ["\\(","\\)"]]);
});
});
}, "mathjax-editing");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "69"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
noCode: true, onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f3028579%2fcan-some-one-tell-me-what-this-notation-means-n-%25e2%2586%2592%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
$begingroup$
First: $|X|$ is probably the number of elements of $X$, so let's assume that's true and set $k = |X|$. Then $N^{|X|}$ is the set of $k$-tuples of natural numbers
If $M:Bbb{N}^{|X|}rightarrow Bbb{R}$, then $M$ is a function that maps a $k$-tuple of natural numbers into the set of real numbers.
$endgroup$
add a comment |
$begingroup$
First: $|X|$ is probably the number of elements of $X$, so let's assume that's true and set $k = |X|$. Then $N^{|X|}$ is the set of $k$-tuples of natural numbers
If $M:Bbb{N}^{|X|}rightarrow Bbb{R}$, then $M$ is a function that maps a $k$-tuple of natural numbers into the set of real numbers.
$endgroup$
add a comment |
$begingroup$
First: $|X|$ is probably the number of elements of $X$, so let's assume that's true and set $k = |X|$. Then $N^{|X|}$ is the set of $k$-tuples of natural numbers
If $M:Bbb{N}^{|X|}rightarrow Bbb{R}$, then $M$ is a function that maps a $k$-tuple of natural numbers into the set of real numbers.
$endgroup$
First: $|X|$ is probably the number of elements of $X$, so let's assume that's true and set $k = |X|$. Then $N^{|X|}$ is the set of $k$-tuples of natural numbers
If $M:Bbb{N}^{|X|}rightarrow Bbb{R}$, then $M$ is a function that maps a $k$-tuple of natural numbers into the set of real numbers.
answered Dec 6 '18 at 15:22
dbxdbx
1,602311
1,602311
add a comment |
add a comment |
Thanks for contributing an answer to Mathematics Stack Exchange!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
Use MathJax to format equations. MathJax reference.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f3028579%2fcan-some-one-tell-me-what-this-notation-means-n-%25e2%2586%2592%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
1
$begingroup$
Give a bit of context making clear what "mechanism" means, please.
$endgroup$
– kimchi lover
Dec 6 '18 at 14:47
$begingroup$
Here's what I see. Please use MathJax (a type of $LaTeX$).
$endgroup$
– Shaun
Dec 6 '18 at 14:50
$begingroup$
Detexify will help you find the code for certain symbols in $LaTeX$.
$endgroup$
– Shaun
Dec 6 '18 at 14:53
$begingroup$
I figured it out. I will use MathJax next time while posting questions :)
$endgroup$
– Neera
Dec 6 '18 at 15:02