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Apparatus for computing exponential and trigonometric functions
Apparatus for computing exponential and trigonometric functions
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机译:用于计算指数函数和三角函数的设备
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摘要
A 64-bit precision digital circuit for computing the exponential function and a related 64-bit precision digital circuit for computing sine and cosine, each circuit comprising a master circuit and a slave circuit. The master circuit computes the remainders x.sub.i for every "logical" iteration i using fast, low-precision circuit, thereby accumulating temporary errors. Only at the end of every 8 i's, which marks the end of a "physical" iteration, is a complete and fast correction to the accumulated errors performed. The slave circuit computes quantities called the y.sub.i 's, which will eventually converge to the desired output.
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