## Systems of Equations and Equations of 2nd Degree

To install this library simply copy it to the Mylib folder and then select
**Refresh Libraries**. Then you can access the new functions from the Catalog.

It has two functions: **quadratic**, to solve equations of the second degree and
**simultaneous**, to solve systems of linear equations.

The **simultaneous** function solves systems of equations using a more
straightforward notation: equations are entered in quotation marks, separated
by commas, and the variables are entered in the same way. If an equation is
entered without the = character, it's assumed that the right hand side is zero.

The **quadratic** function returns the real or complex solutions of any 2^{nd}
degree equation and detects double roots. If no real solutions exist and the complex
numbers are set to **Real** on the document's settings, an error message is
displayed. The notation is the same as for the **simultaneous** function: the equation
is entered inside quotes followed by the variable.

This library isn't needed on TI-Nspire CAS. On TI-Nspire CAS you can use the solve function to solve equations or systems of equations.

Download the Equations library in: