Auxillary1 Xcas

From Jose Luis Tabara Carbajo in his Xcas YouTube Videos

Post 2

Directly entering values or expressions in CAS functions. For approx use a b/c key.

Using evalf for significant digits plus Prime’s root template rather than Xcas root function.

The soft key simplify for the last entry work the same as expand.

Use Polynomial>Find Roots rather than Xcas roots and Algebra> Substitute rather than subs.

Post 3

Notice use of Matrix (Vector) format for solve multiple variable entry. Use upper
 right for radian / degree not Xcas angle_radian assigned 0 or 1.

Notice previous notes plus Matrix (Vector) to display multiple results.

Need to use purge to prevent variable interaction with results not be what we are
 looking for. The HP prime function lncollect only gives us partially what we are looking for
.

Notice function values plus corresponding limit.

Post 4

Notice the various derivative examples.

Here we have integration and vectors.

Dealing with formula for Dot product plus Cross product function.

See the double bracket notation for multiple row matrices plus various matrix
operations. For matrices we like changing input Entry to Algebraic. For a
2by3 matrix [[r1c1, r1c2, r1c3], [r2c1, r2c2, r2c3]].

Post 5

Inverse and identity matrix operations. Simultaneous equations by two methods.
For matrices we like changing input Entry to Algebraic.

A third method, plus handling infinite and no solution simultaneous equations.