It seems like you've copied a piece of text and provided the title 'MathType 7.7.1.258 instal the last version for ios'. I'm here to help!

From what I understand, you're looking to install MathType on your iOS device. Here's a step-by-step guide to get you started:

For iPhone (iPhone 6s, 6, and original iPhone SE):

1. Press and hold the top and Home buttons until you see 'Connect to iTunes.'

2. Click your iPhone in iTunes or Finder.

* If you're using iTunes, click the iPhone button in the upper-left area of the app.

* If you're using a Mac, click the name of your iPhone in the left panel.

For installing MathType:

1. Go to the Software Informer website ('www.software.informer.com'(http://www.software.informer.com)) and search for MathType 7.7.

2. Download the latest version (MathType 7.7) and follow the installation instructions.

* Rich set of mathematical symbols and structures

* Intuitive interface for editing various types of mathematical formulas

* Supports word, web pages, print, display, and TeX, LaTeX, MathML documents

If you have any further questions or need additional assistance, feel free to ask!