# How to assign a variable based on an equation?

41 ビュー (過去 30 日間)
Matthew Carragher 2021 年 9 月 12 日
コメント済み: darova 2021 年 9 月 13 日
I need to update certain material properties as a system cools. The properties are dependant on temperature, and I have equations that relate the values of the properties to temperature.
Is there a way to store an equation of a single variable, then use that equation to determine the value for a new variable?
I want to be able to define the equation at the start of the code and use that equation to determine the new property.
Something along the lines of:
Density_equation = x^2 + 2x + 10
T = 1000
Density = Density_equation(T)
I hope this makes sense, I am having trouble articulating my question.

サインインしてコメントする。

### 回答 (1 件)

Paul Hoffrichter 2021 年 9 月 12 日
Inline anonymous functions can be defined as follows:
Density_equation = @(x) x^2 + 2*x + 10
Density_equation = function_handle with value:
@(x)x^2+2*x+10
T = 1000
T = 1000
Density = Density_equation(T)
Density = 1002010
##### 2 件のコメント表示 1 件の古いコメント非表示 1 件の古いコメント
darova 2021 年 9 月 13 日 サインインしてコメントする。

### カテゴリ

Help Center および File ExchangeFunction Creation についてさらに検索

### Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!