## Description

HAKIDASHI4 solves simultaneous equations by Gaussian elimination. It has the following features.

- Up to
**9**simultaneous equations (nine-way linear systems) can be solved. - In addition to the calculation results, the
**calculation process**is output. - You can include
**variables**in the expression; both $2x + y = 0$ and $ax + by = c$ are valid expressions. - Expressions are output in
**TeX format**. Thus, they can be copied and pasted into MathType or MS Word. - Calculation results will be deleted from the server after
**12 hours**. Please save the calculation results.

If your equation does not contain variables or if you have fewer than three equations, we recommend using Wolfram Alpha. This is a very good tool, but the free version is limited in computation time. If you want to calculate equations that include variables for free, we recommend HAKIDASHI4.

## News

- The page "Render TeX" can now save formulas as SVG images.