







Unit Circle Trigonometry - haitham
An interactive sketch for visualizing sine and cosine functions with the unit circle
Doing maths in CSS
sin(), cos(), atan2() landed in CSS in 2023. You can now place elements in circles, arcs, and spirals with pure CSS, no JavaScript, no libraries. Here's how the math works.

Sine, Saw, Square, Triangle, Pulse: Basic Waveforms in Synthesis and Their Properties
Learn the properties of 5 basic waveforms in sound synthesis to use their full potential in your synthesizer performance or design.
Root-raised-cosine filter
In signal processing, a root-raised-cosine filter (RRC), sometimes known as square-root-raised-cosine filter (SRRC), is frequently used as the transmit and receive pulse shaping filter in a digital communication system to perform matched filtering. This helps in constraining the occupied bandwidth of the waveform without introducing intersymbol interference (ISI). The combined response of two such filters is that of the raised-cosine filter. It obtains its name from the fact that its frequency response, H r r c ( f ) {\displaystyle H_{rrc}(f)} , is the square root of the frequency response of the raised-cosine filter, H r c ( f ) {\displaystyle H_{rc}(f)} :
Loss function
In mathematical optimization and decision theory, a loss function or cost function is a function that maps an event or values of one or more variables onto a real number intuitively representing some "cost" associated with the event. An optimization problem seeks to minimize a loss function. An objective function is either a loss function or its opposite, in which case it is to be maximized. The loss function could include terms from several levels of the hierarchy.

Gallbladder: What Is It, Function, Location & Anatomy
Your gallbladder is a small, pear-shaped organ located under your liver. Your gallbladder stores bile, which is a fluid your liver produces that helps digest fats.
Shallow water equations
The shallow-water equations (SWE) are a set of hyperbolic partial differential equations that describe the flow below a pressure surface in a fluid. The shallow-water equations in unidirectional form are also called (de) Saint-Venant equations, after Adhémar Jean Claude Barré de Saint-Venant.

All elementary functions from a single operator
A single two-input gate suffices for all of Boolean logic in digital hardware. No comparable primitive has been known for continuous mathematics: computing elementary functions such as sin\sin, cos\cos, \sqrt{\phantom{x}}, and log\log has always required multiple distinct operations. Here we show that a single binary operator,
The receiver operating characteristic (ROC) curve
The ROC curve is a plot of sensitivity vs. false positive rate (1-specificity), for a range of diagnostic test results. It graphically represents the compromise between sensitivity and specificity in tests which produce results on a numerical scale. It therefore allows a graphical representation of a test's accuracy, and allows for a comparison of such tests.
Xでの児童ポルノ・盗撮取引の投稿 15カ月間で66万件超 Grokを収集に悪用 | Tansa
シリーズ「デジタルと性暴力 悪夢を終わらせる」 Xでの児童ポルノ・盗撮取引の投稿 15カ月間で66万件超 Gr

Subdomain Gateway Specification
Defines how HTTP Gateway can implement support for HTTP Host headers to enable isolated website hosting based on root CID-derived Origins. This ensures compatibility with native ipfs:// and ipns:// URIs, and aligns with the existing Same-origin security model in web browsers, including relative URL pathing and permission scopes of Web APIs.
When and how to use the section element
So what on earth is a <section> element actually for? The answer isn’t as obvious as you might have hoped, but it’s definitely straightforward.

tailscale/caddy-tailscale
A highly experimental exploration of integrating Tailscale and Caddy.
Debt Service Coverage Ratio (DSCR) | Formula + Calculator
Debt Service Coverage Ratio (DSCR) measures if the income generated by a commercial property is sufficient to fulfill its annual debt burden.

Standardized nomenclature, symbols, and units for bone histomorphometry: A 2012 update of the report of the ASBMR Histomorphometry Nomenclature Committee
Before publication of the original version of this report in 1987, practitioners of bone histomorphometry communicated with each other in a variety of arca

In mathematics, physics and engineering, the sinc function ( SINK), denoted by sinc(x), is defined as either or