Prove the size of a hyperbolic angle is twice the area of its hyperbolic sector.
$begingroup$
I'm trying to figure out how the hyperbolic functions are derived using a unit hyperbola.
According to this walkthrough, argument u in (cosh(u), sinh(u)) should be equal to 2A, where A is the area of an intercepted hyperbolic sector from (0,0) to (cosh(u), sinh(u)).
Confused as to why this is defined as such, I found on Wikipedia:
The size of a hyperbolic angle is twice the area of its hyperbolic sector. The hyperbolic functions may be defined in terms of the legs of a right triangle covering this sector.
However, I couldn't find a explanation for this anywhere. Can anyone help show me why this is?
calculus geometry hyperbolic-functions
New contributor
$endgroup$
add a comment |
$begingroup$
I'm trying to figure out how the hyperbolic functions are derived using a unit hyperbola.
According to this walkthrough, argument u in (cosh(u), sinh(u)) should be equal to 2A, where A is the area of an intercepted hyperbolic sector from (0,0) to (cosh(u), sinh(u)).
Confused as to why this is defined as such, I found on Wikipedia:
The size of a hyperbolic angle is twice the area of its hyperbolic sector. The hyperbolic functions may be defined in terms of the legs of a right triangle covering this sector.
However, I couldn't find a explanation for this anywhere. Can anyone help show me why this is?
calculus geometry hyperbolic-functions
New contributor
$endgroup$
add a comment |
$begingroup$
I'm trying to figure out how the hyperbolic functions are derived using a unit hyperbola.
According to this walkthrough, argument u in (cosh(u), sinh(u)) should be equal to 2A, where A is the area of an intercepted hyperbolic sector from (0,0) to (cosh(u), sinh(u)).
Confused as to why this is defined as such, I found on Wikipedia:
The size of a hyperbolic angle is twice the area of its hyperbolic sector. The hyperbolic functions may be defined in terms of the legs of a right triangle covering this sector.
However, I couldn't find a explanation for this anywhere. Can anyone help show me why this is?
calculus geometry hyperbolic-functions
New contributor
$endgroup$
I'm trying to figure out how the hyperbolic functions are derived using a unit hyperbola.
According to this walkthrough, argument u in (cosh(u), sinh(u)) should be equal to 2A, where A is the area of an intercepted hyperbolic sector from (0,0) to (cosh(u), sinh(u)).
Confused as to why this is defined as such, I found on Wikipedia:
The size of a hyperbolic angle is twice the area of its hyperbolic sector. The hyperbolic functions may be defined in terms of the legs of a right triangle covering this sector.
However, I couldn't find a explanation for this anywhere. Can anyone help show me why this is?
calculus geometry hyperbolic-functions
calculus geometry hyperbolic-functions
New contributor
New contributor
edited Jan 5 at 6:10
sqrtpapi2001
New contributor
asked Jan 5 at 6:04
sqrtpapi2001sqrtpapi2001
62
62
New contributor
New contributor
add a comment |
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
});
}
});
sqrtpapi2001 is a new contributor. Be nice, and check out our Code of Conduct.
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%2f3062432%2fprove-the-size-of-a-hyperbolic-angle-is-twice-the-area-of-its-hyperbolic-sector%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
sqrtpapi2001 is a new contributor. Be nice, and check out our Code of Conduct.
sqrtpapi2001 is a new contributor. Be nice, and check out our Code of Conduct.
sqrtpapi2001 is a new contributor. Be nice, and check out our Code of Conduct.
sqrtpapi2001 is a new contributor. Be nice, and check out our Code of Conduct.
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%2f3062432%2fprove-the-size-of-a-hyperbolic-angle-is-twice-the-area-of-its-hyperbolic-sector%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