How can I write the value of the array as an exponent in sprintf

13 次查看（过去 30 天）

Jan-Erik 2011-6-29

Hello, I want write the following function in the legend of my graph: f(x) = a * x^n.

I calculated a and n. Now I want to replace a and n with the corresponding value and write it as a string. So I want to use the command sprintf:

sprintf('\\rm{f(x) = %0.4g * x^%0.3g}', a, n)

The only problem is that I can't get the value for n as an exponent. How can you do that? Is it possible with sprintf?

Thank you for any help!

Matt Fig 2011-6-29

Works here:

plot(1:10)
legend(sprintf('f(x) = %0.4g * x^%0.3g', .3, 3))

EDIT In response to comments.

In that case:

legend(sprintf('f(x) = %0.4g * x^{%0.3g}', -.3, -3))

Matt Fig 2011-6-29

See my edit.

Jan-Erik 2011-6-30

Works perfectly. Thank you so much!

MATLAB Graphics Formatting and Annotation Labels and Annotations Title

在 Help Center 和 File Exchange 中查找有关 Title 的更多信息

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

Translated by