What does cosine mean?

cosine (noun): In a right triangle, the ratio of the length of the side adjacent to an acute angle to the length of the hypotenuse. Symbol: cos As a hashtag, #cosine carries this topic across social platforms.

How popular is #cosine?

#cosine has no measured public activity on the open social web in the last 7 days. It is currently wide open.

What hashtags are related to #cosine?

No related hashtags with measured usage were found for #cosine.

How much does it cost to own #cosine?

#cosine is available as a #name from $520.70 per year. You can claim it by card at https://hashtag.org/checkout/portal-name?name=cosine or with tokens on hashtag.space at https://hashtag.space/#cosine.

#cosine

Name: #cosine — a #name on hashtag.org
Brand: hashtag.org
Price: 520.70 USD
Availability: InStock

Live, measured metrics for the hashtag #cosine from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.

hashtag.org network · sponsored

Own #cosine

This #name is available to claim. It becomes your portal on the open agent web: this very page, a keyword you rank for by an open public stake, and a verifiable identity for AI agents. Nobody else sells a page like this for every #name.

$520.70/ year · 6-character #name

Claim #cosine — $520.70/yr→Buy on hashtag.space (web3)

card via hashtag.org · tokens via hashtag.space

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Uses / 7 days

Mastodon

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Accounts / 7 days

Mastodon

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Day-by-day usage

measured · mastodon.social (Mastodon public tags API) · fetched 2026-09-25 19:20 UTC

No measured public usage for #cosine in the last 7 days. That is a real result, and a good one to know: this hashtag is wide open right now. We show a dash before we ever show a made-up number. Browse the trending index for tags with live measurements.

Related hashtags

measured · mastodon.social (Mastodon public search API) · fetched 2026-09-25 19:20 UTC

No related tags with measured usage found for #cosine.

Live pulse

measured · Mastodon tag timeline · fetched 2026-09-25 19:20 UTC

No recent public posts found for #cosine on Mastodon. Nothing measured, so nothing shown.

What “cosine” means

Wiktionary · Wikipedia

cosine/ˈkəʊ.saɪn/

nounIn a right triangle, the ratio of the length of the side adjacent to an acute angle to the length of the hypotenuse. Symbol: cos

Full entry on Wiktionary →

In mathematics, sine and cosine are trigonometric functions of an angle. The sine and cosine of an acute angle are defined in the context of a right triangle: the sine of an acute angle of a right triangle is the ratio of the length of the side opposite that angle to the length of the longest side of the triangle, the hypotenuse; the cosine is the ratio of the length of the adjacent side to that of the hypotenuse. For an angle , the sine and cosine functions are denoted as and .

“Sine and cosine” on Wikipedia (CC BY-SA) →

#cosine across platforms

every network with a public tag surface

Follow #cosine straight to each platform’s own tag page. Where a platform publishes open data we measure it above; the rest lock their numbers behind paid APIs, so we link rather than guess.

X (Twitter) ↗Instagram ↗TikTok ↗Facebook ↗LinkedIn ↗YouTube ↗Threads ↗Bluesky ↗Mastodon ↗Reddit ↗Pinterest ↗Tumblr ↗

Every number above is measured from a named public API at the shown fetch time. Nothing is estimated or extrapolated. Platforms that lock their data behind paid APIs are not shown. Agents: the same numbers, as JSON, at /api/hashtags/cosine