डबल-स्ट्रक इटैलिक स्मॉल डी ⅆ

Lowercase ‘d’ is often used to denote diameter, distance, differential, and one of the varieties of quarks, as well as other mathematical and scientific phenomena. As for formulas and calculations, the italic 𝑑 , bold small 𝐝 , handwritten 𝒹 from the गणितीय अक्षरांकीय चिह्न  1D400–1D7FF are used.

Double-struck lowercase ‘d’ is rarely seen in scientific works. This unfilled letter with a double outline is commonly used for decorative purposes in texts. Copy and paste it in your nickname or title, on a business card or promotional brochure. This letter combines well with other double-lined symbols from Unicode, such as ⅇ , ⅈ , ⅉ .

संकेत ‘डबल-स्ट्रक इटैलिक स्मॉल डी’ ‘डबल-इटैलिक गणित प्रतीक’ उपखंड में शामिल है, जो ‘पत्र-जैसे प्रतीक’ खंड का हिस्सा है, और यह Unicode संस्करण 3.2 के भाग के रूप में 2002 में स्वीकृत हुआ था।