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What is the meaning of the triangular symbol?
Triangle Unusual creativity or talent. -pointing up Success -pointing down Failure The triangle is thought to be the most stable of shapes and appears in the art and religious imagery of many ancient cultures. Gods and goddesses of many pagan pantheons are said to be of triple aspects. Feng Shui regards the triangle as a fire element for all they see it as incomplete and unbalanced, and it is auspicious when placed in the south. As a protrusion from a building they are excellent for the south-west and north -east corners, but will cause a loss of luck if placed in the north-west or west corners.
What are the contribution of georg von purbach to trigonometry?
He made his observations with very simple instruments, using an ordinary plumb-line to measure the angles of elevation of the stars. He also introduced a mathematical innovation by using Hindu-Arabic numerals in his sine tables, the first transition from the duodecimal to the decimal system.
