数字和精度
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，请参阅提高数值计算的精度。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.
- 提高数值计算的精度
使用可变精度算术任意提高精度。
- 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.
精选示例
Prime Factorizations
Use some elementary functions on sym objects using the Symbolic Math Toolbox™.
Handling Large Integers to Solve the 196 Problem
Work with large integers and their decimal representation using the Symbolic Math Toolbox™.
Compute Binomial Coefficients Exactly
Get precise values for binomial coefficients and find probabilities in coin-tossing experiments using the Symbolic Math Toolbox™.
Find Almost Integers with High-Precision Arithmetic
Find almost integers, or numbers that are very close to integers, using variable-precision arithmetic in Symbolic Math Toolbox.
Decimal Digits of PI
Use variable-precision arithmetic to investigate the decimal digits of pi using Symbolic Math Toolbox™.
