如何在书本定理或示例环境中使用内联R代码 [英] How to use inline R code in a bookdown theorem or example environment

问题描述

我使用书本来生成html和PDF格式的文档.在定理和示例环境中，如何使用内联R代码的结果?

I use bookdown to generate documents in both html and PDF. How could I use results from inline R code in theorem and example environments?

这是我尝试过的:

---
title: "Test"
output:
  bookdown::pdf_book:
    toc: false
html_document:
    toc: false
---

```{r}
a <- 2
b <- 3
```

If $a = `r a`$ and $b = `r b`$, then $a + b = `r a + b`$.

```{theorem}
If $a = `r a`$ and $b = `r b`$, then $a + b = `r a + b`$.
```

```{example}
If $a = `r a`$ and $b = `r b`$, then $a + b = `r a + b`$.
```

我得到

推荐答案

您可以使用显式的Latex标签:

You could go with explicit Latex tags:

---
title: "Test"
output:
  bookdown::pdf_book:
    toc: false
html_document:
    toc: false
---

```{r}
a <- 2
b <- 3
```

\begin{theorem}

If $a = `r a`$ and $b = `r b`$, then $a + b = `r a + b`$.

\end{theorem}

\begin{example}

If $a = `r a`$ and $b = `r b`$, then $a + b = `r a + b`$.

\end{example}

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