New Method for determination of trigonometric ratios comparing to classical methods. Precise-Rewritten method determines exact value of trigonometric ratios for any angles and for any polygon. It measure exact chord length, values of Sine etc. Being an amateur mathematician, there are few areas where I am trying further improvements not expressed in this book. If someone professional assist me (for their respect supervising me), more areas could be covered in this method. At the end, we can transpose trigonometry to school level from advance study level. Intention of this book (and its main...

Since last 2500 years, respectful mathematicians worked for trigonometric values differently. The determined 6-major and further 10 less-common trigonometric ratios. Many modern mathematicians worked for EXACT values too. In this book, there are five methods for determination of trigonometric ratios. One, named as Vatsa-method is ratio-based. It discovered new sum of natural number theory of 'vatsa'. Remaining four methods are based on chord (a) and supplementary chords (b) or their product (ab). We can find EXACT trigonometric values for all integer angles and polygons; for the remaining...