CAS Matrix*Vector+Vector addition + const addition and Coefficients fail

Sorry, Coefficients(quadric) only works in the Algebra View (as you've noticed).

For the other problems please say clearly

* which row is wrong

* what you get

* what you'd like to get

I see,

to Coefficents I have added a additional x^2 to force a correct result.

----

see Line 24 and Line 27

If I add a_0 : X M X + a X + a_0 ===> I got a -5 and not the value of a_0=-1

even

X M X + a X + 1

>x² + 3y² - z² - 4x y - 2y z + 2x - 2y + 5

Addition of Matrix*Vektor+Const goes wrong

I am missing a clear statement to convert list <==> vector, vector <==> list

list((1,2,3))={1,2,3}

vector({1,2,3})=(1,2,3)^T

Point({1,2,3})=(1,2,3)

it's pretty horrible to handle homogeneous coordinates in CAS

and Vector <==> Point

v:=Vector( Q)

is possible, but

V:=Point(v)

not....

V:=Point(v) <-----> V=(0,0,0)+v

v <-----> {x(v),y(v),z(v)}

Of course you can construct a workaround for almost everything, but in the sense of a clear and readable code it would be desirable to have explicit instructions?

BTW: the functions x(),y(),z() have a low half-life in CAS - and yes, I have workaround for ...

big ilogical bug

he hecho algunas cuentas y en el caso

X M X 3+6+1+2 lo que se calcula realmente es (X M X+9) 12 donde 9=3+6 y 12=3+6+1+2

he probado con otros numeros diferentes y la cuenta se hace de la misma manera

al menos sigue una logica erronea