In one of my papers, I list some numerical results in addition to some figures. What I'd like to do is make sure that the numerical results in my paper always agree with the code. Right now, I just directly copy the numerical results from my simulation output into the paper, which is extremely simple and low-tech, but error-prone, because I could mis-copy the results, or forget to sync the paper results with the code output. Is there a good way to keep the numerical results I quote in my papers in sync with the results generated by my code? (Here, I assume that executing the code is easy and practical to do whenever I want to update my paper.) These numerical results don't necessarily lend themselves to tabular form. Sometimes, I have tables in manuscripts, but more commonly, I have simulation parameters listed as numbers in equations . An example would be something like: where I'd like to replace the elements of the initial condition $\mathbf{y}^{*}$ with the actual parameters I use in a simulation that numerically integrates an system of ordinary differential equations. Using a table for one-off data such as this example seems like overkill and more ink than necessary. I presume that figures are an easier case: whenever the document is "built" (from LaTeX source, Markdown, RST, etc.), start the build process by executing the code. However, if people have better suggestions for keeping figures generated by my simulations in sync with my paper, I'd love