公式处理和简化
通过选择适当的函数，将表达式变换为所需的特定形式（扩展、分解或以特定项表达）请参阅Choose Function to Rearrange Expression。如果只需较简单的表达式，请使用 simplify。您还可以利用 subs 用另一个值代入表达式的任何部分。
实时编辑器任务
| 简化符号表达式 | Simplify symbolic expressions in Live Editor |
函数
主题
- Choose Function to Rearrange Expression
Several functions are available to manipulate expressions. Understand which function to use.
- Simplify Symbolic Expressions
Simplifying symbolic expressions, including assumptions and additional options.
- Substitute Variables in Symbolic Expressions
Substitute variables with other variables, numbers, vectors, or matrices.
- 使用 subs 计算符号表达式
在为表达式和函数的变量赋值后计算表达式和函数。
- Developing an Algorithm for Undistorting an Image
This example develops a mathematical model using the Symbolic Math Toolbox™ to undistort an image and features a local function in the live script.
- Abbreviate Common Terms in Long Expressions
Simplify the display of long expressions by abbreviating common terms.
精选示例
Electric Dipole Moment and Radiation Power
Finds the average radiation power of two attracting charges moving in an elliptical orbit (an electric dipole).
Harmonic Analysis of Transfer Function Output
Finds closed-form solutions for the coefficients of frequencies in an output signal. The output signal results from passing an input through an analytical nonlinear transfer function.
Explore Single-Period Asset Arbitrage
Explore basic arbitrage concepts in a single-period, two-state asset portfolio.
Analytical Solutions of the Inverse Kinematics of a Humanoid Robot
Derive analytical solutions for the inverse kinematics of the head chain of a humanoid robot.
