数字和精度
可变精度算术和初等数论运算
Symbolic Math Toolbox™ 可以使用 vpa
执行具有可变精度的数值计算。有关详细信息,请参阅Increase Precision of Numeric Calculations。要了解何时使用符号、可变精度或双精度算术,请参阅Choose Numeric or Symbolic Arithmetic。Symbolic Math Toolbox 还提供用于舍入运算以及处理复数的函数。
函数
主题
- Choose Numeric or Symbolic Arithmetic
Compare and contrast double-precision, variable-precision, and symbolic arithmetic.
- Numeric to Symbolic Conversion
Convert floating-point numbers to exact symbolic numbers.
- Increase Precision of Numeric Calculations
Increase precision arbitrarily with variable-precision arithmetic.
- Recognize and Avoid Round-Off Errors
Round-off errors in symbolic and variable-precision calculations.
- Increase Speed by Reducing Precision
Increase speed of calculations by reducing precision of calculations.