U+1D75C "𝝜" Mathematical Sans-Serif Bold Capital Eta Unicode Character

U+1D75C "𝝜" Mathematical Sans-Serif Bold Capital Eta is a stylized variant of the Greek capital letter Eta, designed in a sans-serif bold typeface for use in mathematical and scientific notation. It belongs to the Mathematical Alphanumeric Symbols block, which provides distinct alphabetic forms to avoid confusion with ordinary text letters and to denote specific variables, constants, or operators in fields such as physics, engineering, and formal logic. This character allows authors and mathematicians to clearly represent the seventh letter of the Greek alphabet in a bold, sans-serif style when standard Greek typefaces are insufficient or when consistent formatting across equations is required.