Given an input / output and set of permitted operations find a formula
$begingroup$
There are a number of math games I’ve been exposed to that give you a set of operations, a starting position then a desired total. E.g. given only the number 1 to 10 and addition, subtraction, multiplication and division determine a sequence of operations to 0 to get you to 1274.
Usually these are against a timer / operation limit so it should occur within the minimum number of operations.
I’ve built a fairly simple solver for this that just brute forces the combination of operations and possible operands until it reaches the desired state, with some basic culling of solutions that do not get closer to the goal.
Is there a particular branch of mathematics I should be looking a better approach? I’m constraining the problem to only deal with integers.
number-theory
$endgroup$
add a comment |
$begingroup$
There are a number of math games I’ve been exposed to that give you a set of operations, a starting position then a desired total. E.g. given only the number 1 to 10 and addition, subtraction, multiplication and division determine a sequence of operations to 0 to get you to 1274.
Usually these are against a timer / operation limit so it should occur within the minimum number of operations.
I’ve built a fairly simple solver for this that just brute forces the combination of operations and possible operands until it reaches the desired state, with some basic culling of solutions that do not get closer to the goal.
Is there a particular branch of mathematics I should be looking a better approach? I’m constraining the problem to only deal with integers.
number-theory
$endgroup$
$begingroup$
Can you use each number a finite number of times only?
$endgroup$
– Parcly Taxel
Jan 13 at 17:38
$begingroup$
@ParclyTaxel Nope, numbers can be repeated to find the solution
$endgroup$
– ahjmorton
Jan 13 at 20:01
add a comment |
$begingroup$
There are a number of math games I’ve been exposed to that give you a set of operations, a starting position then a desired total. E.g. given only the number 1 to 10 and addition, subtraction, multiplication and division determine a sequence of operations to 0 to get you to 1274.
Usually these are against a timer / operation limit so it should occur within the minimum number of operations.
I’ve built a fairly simple solver for this that just brute forces the combination of operations and possible operands until it reaches the desired state, with some basic culling of solutions that do not get closer to the goal.
Is there a particular branch of mathematics I should be looking a better approach? I’m constraining the problem to only deal with integers.
number-theory
$endgroup$
There are a number of math games I’ve been exposed to that give you a set of operations, a starting position then a desired total. E.g. given only the number 1 to 10 and addition, subtraction, multiplication and division determine a sequence of operations to 0 to get you to 1274.
Usually these are against a timer / operation limit so it should occur within the minimum number of operations.
I’ve built a fairly simple solver for this that just brute forces the combination of operations and possible operands until it reaches the desired state, with some basic culling of solutions that do not get closer to the goal.
Is there a particular branch of mathematics I should be looking a better approach? I’m constraining the problem to only deal with integers.
number-theory
number-theory
asked Jan 13 at 17:36
ahjmortonahjmorton
1061
1061
$begingroup$
Can you use each number a finite number of times only?
$endgroup$
– Parcly Taxel
Jan 13 at 17:38
$begingroup$
@ParclyTaxel Nope, numbers can be repeated to find the solution
$endgroup$
– ahjmorton
Jan 13 at 20:01
add a comment |
$begingroup$
Can you use each number a finite number of times only?
$endgroup$
– Parcly Taxel
Jan 13 at 17:38
$begingroup$
@ParclyTaxel Nope, numbers can be repeated to find the solution
$endgroup$
– ahjmorton
Jan 13 at 20:01
$begingroup$
Can you use each number a finite number of times only?
$endgroup$
– Parcly Taxel
Jan 13 at 17:38
$begingroup$
Can you use each number a finite number of times only?
$endgroup$
– Parcly Taxel
Jan 13 at 17:38
$begingroup$
@ParclyTaxel Nope, numbers can be repeated to find the solution
$endgroup$
– ahjmorton
Jan 13 at 20:01
$begingroup$
@ParclyTaxel Nope, numbers can be repeated to find the solution
$endgroup$
– ahjmorton
Jan 13 at 20:01
add a comment |
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
});
}
});
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%2f3072288%2fgiven-an-input-output-and-set-of-permitted-operations-find-a-formula%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
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%2f3072288%2fgiven-an-input-output-and-set-of-permitted-operations-find-a-formula%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
$begingroup$
Can you use each number a finite number of times only?
$endgroup$
– Parcly Taxel
Jan 13 at 17:38
$begingroup$
@ParclyTaxel Nope, numbers can be repeated to find the solution
$endgroup$
– ahjmorton
Jan 13 at 20:01