What does “$:[$” mean in $q_{(i,d,j)} ≜ P(S_{[t+1:t+d]}=j;|S_{[t+1:[}=j)$?












1












$begingroup$


I am reading through some math on a paper, and I am trying to properly understand some of the proofs / equations. In particular,
$$q_{(i,d,j)} ≜ P(S_{[t+1:t+d]}=j|S_{[t+1:[}=j)$$
is fairly confusing to me.



I know that the function q is being defined as that following block, and so on, but I am getting lost at what :[ means. Does anyone know where to point me? Google comes up with nothing on this notation, though I am aware that is used to typically denote arrays / sets.



Paper in question is here (formula on page 5)










share|cite|improve this question











$endgroup$












  • $begingroup$
    Possibly related might be notation borrowed from computer programming... given an array, myarray = [a,b,c,d,e,f,g] the notation myarray[2:4] would return the subarray which starts at and includes the second entry and ends at but doesn't include the fourth entry, in this case myarray[2:4] returns [c,d] (arrays start counting from 0). If a colon appears without anything to the left or right of it, it is unbounded in that direction, for example myarray[3:] returns [d,e,f,g]. At a glance it appears as though a similar meaning might be intended here.
    $endgroup$
    – JMoravitz
    Jan 26 at 0:28
















1












$begingroup$


I am reading through some math on a paper, and I am trying to properly understand some of the proofs / equations. In particular,
$$q_{(i,d,j)} ≜ P(S_{[t+1:t+d]}=j|S_{[t+1:[}=j)$$
is fairly confusing to me.



I know that the function q is being defined as that following block, and so on, but I am getting lost at what :[ means. Does anyone know where to point me? Google comes up with nothing on this notation, though I am aware that is used to typically denote arrays / sets.



Paper in question is here (formula on page 5)










share|cite|improve this question











$endgroup$












  • $begingroup$
    Possibly related might be notation borrowed from computer programming... given an array, myarray = [a,b,c,d,e,f,g] the notation myarray[2:4] would return the subarray which starts at and includes the second entry and ends at but doesn't include the fourth entry, in this case myarray[2:4] returns [c,d] (arrays start counting from 0). If a colon appears without anything to the left or right of it, it is unbounded in that direction, for example myarray[3:] returns [d,e,f,g]. At a glance it appears as though a similar meaning might be intended here.
    $endgroup$
    – JMoravitz
    Jan 26 at 0:28














1












1








1





$begingroup$


I am reading through some math on a paper, and I am trying to properly understand some of the proofs / equations. In particular,
$$q_{(i,d,j)} ≜ P(S_{[t+1:t+d]}=j|S_{[t+1:[}=j)$$
is fairly confusing to me.



I know that the function q is being defined as that following block, and so on, but I am getting lost at what :[ means. Does anyone know where to point me? Google comes up with nothing on this notation, though I am aware that is used to typically denote arrays / sets.



Paper in question is here (formula on page 5)










share|cite|improve this question











$endgroup$




I am reading through some math on a paper, and I am trying to properly understand some of the proofs / equations. In particular,
$$q_{(i,d,j)} ≜ P(S_{[t+1:t+d]}=j|S_{[t+1:[}=j)$$
is fairly confusing to me.



I know that the function q is being defined as that following block, and so on, but I am getting lost at what :[ means. Does anyone know where to point me? Google comes up with nothing on this notation, though I am aware that is used to typically denote arrays / sets.



Paper in question is here (formula on page 5)







notation






share|cite|improve this question















share|cite|improve this question













share|cite|improve this question




share|cite|improve this question








edited Jan 26 at 0:31









Blue

49.1k870156




49.1k870156










asked Jan 25 at 23:12









squirvelsquirvel

61




61












  • $begingroup$
    Possibly related might be notation borrowed from computer programming... given an array, myarray = [a,b,c,d,e,f,g] the notation myarray[2:4] would return the subarray which starts at and includes the second entry and ends at but doesn't include the fourth entry, in this case myarray[2:4] returns [c,d] (arrays start counting from 0). If a colon appears without anything to the left or right of it, it is unbounded in that direction, for example myarray[3:] returns [d,e,f,g]. At a glance it appears as though a similar meaning might be intended here.
    $endgroup$
    – JMoravitz
    Jan 26 at 0:28


















  • $begingroup$
    Possibly related might be notation borrowed from computer programming... given an array, myarray = [a,b,c,d,e,f,g] the notation myarray[2:4] would return the subarray which starts at and includes the second entry and ends at but doesn't include the fourth entry, in this case myarray[2:4] returns [c,d] (arrays start counting from 0). If a colon appears without anything to the left or right of it, it is unbounded in that direction, for example myarray[3:] returns [d,e,f,g]. At a glance it appears as though a similar meaning might be intended here.
    $endgroup$
    – JMoravitz
    Jan 26 at 0:28
















$begingroup$
Possibly related might be notation borrowed from computer programming... given an array, myarray = [a,b,c,d,e,f,g] the notation myarray[2:4] would return the subarray which starts at and includes the second entry and ends at but doesn't include the fourth entry, in this case myarray[2:4] returns [c,d] (arrays start counting from 0). If a colon appears without anything to the left or right of it, it is unbounded in that direction, for example myarray[3:] returns [d,e,f,g]. At a glance it appears as though a similar meaning might be intended here.
$endgroup$
– JMoravitz
Jan 26 at 0:28




$begingroup$
Possibly related might be notation borrowed from computer programming... given an array, myarray = [a,b,c,d,e,f,g] the notation myarray[2:4] would return the subarray which starts at and includes the second entry and ends at but doesn't include the fourth entry, in this case myarray[2:4] returns [c,d] (arrays start counting from 0). If a colon appears without anything to the left or right of it, it is unbounded in that direction, for example myarray[3:] returns [d,e,f,g]. At a glance it appears as though a similar meaning might be intended here.
$endgroup$
– JMoravitz
Jan 26 at 0:28










0






active

oldest

votes











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
});


}
});














draft saved

draft discarded


















StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f3087714%2fwhat-does-mean-in-q-i-d-j-%25e2%2589%259c-ps-t1td-j-s-t1-j%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown

























0






active

oldest

votes








0






active

oldest

votes









active

oldest

votes






active

oldest

votes
















draft saved

draft discarded




















































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.




draft saved


draft discarded














StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f3087714%2fwhat-does-mean-in-q-i-d-j-%25e2%2589%259c-ps-t1td-j-s-t1-j%23new-answer', 'question_page');
}
);

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







Popular posts from this blog

Mario Kart Wii

The Binding of Isaac: Rebirth/Afterbirth

What does “Dominus providebit” mean?