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Sin[x] * Cos[y]
Item
Sin[x] * Cos[y]
Roblox
Asset 13655078087by Spathi
Current RAP
323R$
Avg Price (30d)
—
Avg Price (90d)
—
Avg Price (180d)
435R$

4 sales

Lowest Price
149R$

resale listing

Original Price
95R$
Total Copies
314
Original Copies Remaining
Sold Out
Summary

Sin[x] * Cos[y] is a Roblox UGC Limited hat by Spathi. Its original stock of 314 copies has sold out. Resale listings start at 149 R$, about 54% below its RAP of 323 R$. RBX Invest has tracked no sales of it in the past 30 days. It was created on Roblox on Jun 4, 2023.

Description

I hate calculus

Sin[x] * Cos[y]

Sin[x] * Cos[y] is a Roblox UGC Limited hat by Spathi. Its original stock of 314 copies has sold out. Resale listings start at 149 R$, about 54% below its RAP of 323 R$. RBX Invest has tracked no sales of it in the past 30 days. It was created on Roblox on Jun 4, 2023.

RAP 323 R$
Lowest Price 149 R$
Total Copies 314
Original Copies Remaining Sold Out
Original Price 95 R$
Market Cap 101,422 R$
Item Type UGC Limited
Category Hat
Creator Spathi

How much is Sin[x] * Cos worth? Price and value

As of October 18, 2026, Sin[x] * Cos is worth about 323 Robux, its Recent Average Price (RAP), and the cheapest copy for sale is priced at 149 Robux. Across the 314 owned copies, its estimated market value is 101,422 Robux.

That puts the cheapest copy 54% below RAP. RAP averages recent completed sales, so a listing under it means sellers are currently asking less than the item has been trading for.

How rare is Sin[x] * Cos?

Sin[x] * Cos is a UGC Limited Hat with 314 total copies. It is sold out at the original price, so copies now trade only on the resale market. It originally sold for 95 Robux.

At 323 Robux, RAP sits 3.4x the 95 Robux it first sold for.

Sin[x] * Cos has 76 favorites on the Roblox catalog.

Sin[x] * Cos sales history

RBX Invest has recorded 530 sales of Sin[x] * Cos across 57 trading days, from Jun 4, 2023 to Jun 8, 2026.

Sales here include copies bought from the creator’s original stock as well as resales between players. Free promotional claims are not counted.

Its highest daily average sale price was 399 Robux on Dec 1, 2025, and its lowest was 30 Robux on Nov 16, 2023.

By calendar year, its average sale price went from 78 Robux in 2023 to 456 Robux in 2026, up 485%.

Sin[x] * Cos: average sale price in the 12 most recent months with recorded sales
MonthAverage sale priceSales
Jun 2026435 R$4
Mar 2026498 R$2
Dec 2025399 R$1
Nov 2025240 R$7
Jun 202595 R$1
Jul 2024135 R$1
Jun 202494 R$1
May 2024149 R$1
Apr 2024100 R$4
Mar 202475 R$3
Feb 202453 R$3
Jan 202452 R$2

Did Sin[x] * Cos make money for release buyers?

Sin[x] * Cos sold out of its original stock 1 day after its first recorded sale, on Jun 5, 2023. Copies could be resold from Jul 4, 2023, once Roblox's 30-day resale lock ended.

Bought at the original 95 Robux, a copy had no profitable resale point in its first year once Roblox's cut is taken out.

About Sin[x] * Cos

I hate calculus

How to get Sin[x] * Cos

Sin[x] * Cos is no longer sold by the creator, so the way to get it is to buy a copy from a reseller on Roblox. The cheapest is listed at 149 Robux.

Sin[x] * Cos is Roblox asset ID 13655078087. It was published by Spathi. On RBX Invest it sits in the UGC Limited Hats, Limiteds under 1,000 Copies, Limiteds under 500 R$, Limiteds under 1,000 R$ collections. The RAP, reseller listings, and copy counts on this page refresh from Roblox continuously, so the figures above are the state of the market at the last update rather than a fixed snapshot.