Not simplifying?

[C.Ret]

(10-01-2024 03:37 PM)KeithB Wrote:  Change "2.5" to 25/10

Bonjour,

This is the trick that simplifies the manipulations in the HP Prime CAS. This trick has saved my day many times. Everything is easier with exact coefficients.
It is not only useful in solvers but also on the command line.

But, we may also do without it, but it requires a little more attention and more instructions.

The following screenshot shows two paths to go from the equation \( \frac{2v_1}{-2.5j}+\frac{v_1-v_2}{4j}=\frac{v_2}{2j} \) to the linear equation \( 11\cdot v_1 + 15\cdot v_2=0 \). Obviously, there are many others paths, including those many that I took by trial and error before using the trick given by KeithB that makes thinks so easy.