This paper introduces a computation method of trigonometric functions and inverse trigonometric functions in microprocessor by usr of combination binary fixedpointoperation with look-up table.
A physical processor is organized as different execution units at the hardware level, for example, fixedpoint and floating point operation units.
在硬件级别中，物理处理器是作为不同的执行单元进行组织的，例如定点和浮点操作单元。
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SQL-92 includes a decimal data type, which is an exact numeric type for representing fixedpoint decimal Numbers and performs basic arithmetic operation on decimal Numbers.