Is there such a thing in math the inverse of a sequence?How large need $n$ be taken to ensure that $T_n(x)$...

Problems with rounding giving too many digits

Is there a way to find out the age of climbing ropes?

Can a space-faring robot still function over a billion years?

Can a Mexican citizen living in US under DACA drive to Canada?

A bug in Excel? Conditional formatting for marking duplicates also highlights unique value

New invention compresses matter to produce energy? or other items? (Short Story)

ESPP--any reason not to go all in?

Sundering Titan and basic normal lands and snow lands

Is there a math equivalent to the conditional ternary operator?

If nine coins are tossed, what is the probability that the number of heads is even?

Why is there an extra space when I type "ls" on the Desktop?

Convert an array of objects to array of the objects' values

Where is the fallacy here?

Can you run a ground wire from stove directly to ground pole in the ground

Learning to quickly identify valid fingering for piano?

Is being socially reclusive okay for a graduate student?

PTIJ: Aliyot for the deceased

Does the in-code argument passing conventions used on PDP-11's have a name?

Is "cogitate" an appropriate word for this?

Integrating function with /; in its definition

What is the purpose of a disclaimer like "this is not legal advice"?

Was it really inappropriate to write a pull request for the company I interviewed with?

Ultrafilters as a double dual

School performs periodic password audits. Is my password compromised?



Is there such a thing in math the inverse of a sequence?


How large need $n$ be taken to ensure that $T_n(x)$ gives a value of $ln(1.3)$ which has an error of less than $0.0002$?A convergent / divergent sequence of positive numbers such that $lim frac{s_{n+1}}{s_n}=1$What is the pattern of this sequence of numbers?Studying mathematical analysisCircuit Analysis problem (find the problem)Find the inverse of a arcsin functionWhy is the inverse of the derivative of f not the actual derivative of the inverse of f?Is there any application/benefits to write the logarithms forms of inverse trigonometric functions?Does there exist a continuous function $f$ such that $d_{x}(x_{n},x) leq f (d_{y}(y_{n},y))$?Generating a sequence with resticted growth(trying to undering the math notaion and procedure )













1












$begingroup$


Such as can I construct a sequence by reversing the order of the approximating sequence of $frac{1}{3}$? So such inverse would look like $left{….,0.333333333,0.3333333,0.333333,...0.3right}$.



(Is it a thing here that math students get points down when ask stupid question? )










share|cite|improve this question











$endgroup$












  • $begingroup$
    You can't, imagine if the first element has $n$ three's but in the original sequence the element with $n+1$ three's come after the one with $n$ three's hence in the new sequence it should be before the first element, a contradiction.
    $endgroup$
    – kingW3
    3 hours ago










  • $begingroup$
    And no, there is a difference between stupid and bad questions, in your case the votes have matchedvso your question divides opinion. Giving enough context helps when you are asking a "stupid" question, i.e. mentioning that you heard it in class or in conversation with a friend or online on some webpage helps. Also mention what was the broad topic if the conversation, so that others will be able to address concerns relating to that in the answer as well.
    $endgroup$
    – астон вілла олоф мэллбэрг
    2 hours ago


















1












$begingroup$


Such as can I construct a sequence by reversing the order of the approximating sequence of $frac{1}{3}$? So such inverse would look like $left{….,0.333333333,0.3333333,0.333333,...0.3right}$.



(Is it a thing here that math students get points down when ask stupid question? )










share|cite|improve this question











$endgroup$












  • $begingroup$
    You can't, imagine if the first element has $n$ three's but in the original sequence the element with $n+1$ three's come after the one with $n$ three's hence in the new sequence it should be before the first element, a contradiction.
    $endgroup$
    – kingW3
    3 hours ago










  • $begingroup$
    And no, there is a difference between stupid and bad questions, in your case the votes have matchedvso your question divides opinion. Giving enough context helps when you are asking a "stupid" question, i.e. mentioning that you heard it in class or in conversation with a friend or online on some webpage helps. Also mention what was the broad topic if the conversation, so that others will be able to address concerns relating to that in the answer as well.
    $endgroup$
    – астон вілла олоф мэллбэрг
    2 hours ago
















1












1








1





$begingroup$


Such as can I construct a sequence by reversing the order of the approximating sequence of $frac{1}{3}$? So such inverse would look like $left{….,0.333333333,0.3333333,0.333333,...0.3right}$.



(Is it a thing here that math students get points down when ask stupid question? )










share|cite|improve this question











$endgroup$




Such as can I construct a sequence by reversing the order of the approximating sequence of $frac{1}{3}$? So such inverse would look like $left{….,0.333333333,0.3333333,0.333333,...0.3right}$.



(Is it a thing here that math students get points down when ask stupid question? )







real-analysis sequences-and-series inverse






share|cite|improve this question















share|cite|improve this question













share|cite|improve this question




share|cite|improve this question








edited 2 hours ago







user917099

















asked 4 hours ago









user917099user917099

1495




1495












  • $begingroup$
    You can't, imagine if the first element has $n$ three's but in the original sequence the element with $n+1$ three's come after the one with $n$ three's hence in the new sequence it should be before the first element, a contradiction.
    $endgroup$
    – kingW3
    3 hours ago










  • $begingroup$
    And no, there is a difference between stupid and bad questions, in your case the votes have matchedvso your question divides opinion. Giving enough context helps when you are asking a "stupid" question, i.e. mentioning that you heard it in class or in conversation with a friend or online on some webpage helps. Also mention what was the broad topic if the conversation, so that others will be able to address concerns relating to that in the answer as well.
    $endgroup$
    – астон вілла олоф мэллбэрг
    2 hours ago




















  • $begingroup$
    You can't, imagine if the first element has $n$ three's but in the original sequence the element with $n+1$ three's come after the one with $n$ three's hence in the new sequence it should be before the first element, a contradiction.
    $endgroup$
    – kingW3
    3 hours ago










  • $begingroup$
    And no, there is a difference between stupid and bad questions, in your case the votes have matchedvso your question divides opinion. Giving enough context helps when you are asking a "stupid" question, i.e. mentioning that you heard it in class or in conversation with a friend or online on some webpage helps. Also mention what was the broad topic if the conversation, so that others will be able to address concerns relating to that in the answer as well.
    $endgroup$
    – астон вілла олоф мэллбэрг
    2 hours ago


















$begingroup$
You can't, imagine if the first element has $n$ three's but in the original sequence the element with $n+1$ three's come after the one with $n$ three's hence in the new sequence it should be before the first element, a contradiction.
$endgroup$
– kingW3
3 hours ago




$begingroup$
You can't, imagine if the first element has $n$ three's but in the original sequence the element with $n+1$ three's come after the one with $n$ three's hence in the new sequence it should be before the first element, a contradiction.
$endgroup$
– kingW3
3 hours ago












$begingroup$
And no, there is a difference between stupid and bad questions, in your case the votes have matchedvso your question divides opinion. Giving enough context helps when you are asking a "stupid" question, i.e. mentioning that you heard it in class or in conversation with a friend or online on some webpage helps. Also mention what was the broad topic if the conversation, so that others will be able to address concerns relating to that in the answer as well.
$endgroup$
– астон вілла олоф мэллбэрг
2 hours ago






$begingroup$
And no, there is a difference between stupid and bad questions, in your case the votes have matchedvso your question divides opinion. Giving enough context helps when you are asking a "stupid" question, i.e. mentioning that you heard it in class or in conversation with a friend or online on some webpage helps. Also mention what was the broad topic if the conversation, so that others will be able to address concerns relating to that in the answer as well.
$endgroup$
– астон вілла олоф мэллбэрг
2 hours ago












1 Answer
1






active

oldest

votes


















7












$begingroup$

A sequence is ultimately a map whose domain is $mathbb N$, but the object that you describe (a) has no first term, and (b) terminates.



If you want, I suppose you could define an object whose indices run from $-infty$ to $0$, but that's not appreciably different from looking at the original sequence while standing on your head.






share|cite|improve this answer











$endgroup$













    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%2f3139613%2fis-there-such-a-thing-in-math-the-inverse-of-a-sequence%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









    7












    $begingroup$

    A sequence is ultimately a map whose domain is $mathbb N$, but the object that you describe (a) has no first term, and (b) terminates.



    If you want, I suppose you could define an object whose indices run from $-infty$ to $0$, but that's not appreciably different from looking at the original sequence while standing on your head.






    share|cite|improve this answer











    $endgroup$


















      7












      $begingroup$

      A sequence is ultimately a map whose domain is $mathbb N$, but the object that you describe (a) has no first term, and (b) terminates.



      If you want, I suppose you could define an object whose indices run from $-infty$ to $0$, but that's not appreciably different from looking at the original sequence while standing on your head.






      share|cite|improve this answer











      $endgroup$
















        7












        7








        7





        $begingroup$

        A sequence is ultimately a map whose domain is $mathbb N$, but the object that you describe (a) has no first term, and (b) terminates.



        If you want, I suppose you could define an object whose indices run from $-infty$ to $0$, but that's not appreciably different from looking at the original sequence while standing on your head.






        share|cite|improve this answer











        $endgroup$



        A sequence is ultimately a map whose domain is $mathbb N$, but the object that you describe (a) has no first term, and (b) terminates.



        If you want, I suppose you could define an object whose indices run from $-infty$ to $0$, but that's not appreciably different from looking at the original sequence while standing on your head.







        share|cite|improve this answer














        share|cite|improve this answer



        share|cite|improve this answer








        edited 2 hours ago

























        answered 3 hours ago









        J. MurrayJ. Murray

        53017




        53017






























            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%2f3139613%2fis-there-such-a-thing-in-math-the-inverse-of-a-sequence%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

            “%fieldName is a required field.”, in Magento2 REST API Call for GET Method Type The Next...

            How to change City field to a dropdown in Checkout step Magento 2Magento 2 : How to change UI field(s)...

            夢乃愛華...