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Altera_Forum
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14 years ago

sine/cosine in fixed_pkg

is sine or cosine funtion is supported by fixed_pkg? i meanif i write c<= sin(k) using fixed_pkg, then the code is right?
Altera_Forum's avatar
Altera_Forum
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14 years ago

(at the risk of being pedantic) You can save half of the table (or increase precision) by only initialising up to PI / 2 covering the first quadrant and express the other 3 quadrants in function of the first, e.g. sin (PI / 2 + alpha) == sin (PI / 2 - alpha)