Cardinal sign (astrology) with the word "angular". Angular signs are those signs which are located on the astrological angles of any given natal chart. Angular houses may be cardinal, fixed or mutable, depending on the birth time of the chart, but only Aries, Cancer, Libra, and Capricorn are cardinal signs. Their starts are related to equinoxes and solstices. The four cardinal signs of the zodiac are: Cardinal sign (astrology) The practice of astrology recognizes four cardinal signs of the zodiac: Aries, Cancer, Libra, and Capricorn — sometimes called reacting signs. It associates those people born "under" one of these with certain human behaviors
Plus-minus sign be rewritten as ""x" ± ("y" − "z")" to avoid confusion, but cases such as the trigonometric identity are most neatly written using the "∓" sign. The trigonometric equation above thus represents the two equations: but "not" because the signs are exclusively alternating. Another example is which represents two equations. The plus-minus sign resembles the Chinese characters and , whereas the minus-plus sign resembles . Plus-minus sign The plus-minus sign (±) is a mathematical symbol with multiple meanings. The sign is normally pronounced "plus or minus" or "plus-minus". A version of the sign, including also the French word "ou" ("or")