HP Prime Graphing Calculator - Manual (Page 379)

Functions and commands 375
additionally Used in programming with assume to state an additional
assumption about a variable.
Example:
assume(n,integer);
additionally(n>5);
algvar Returns the list of the symbolic variable names used in an
expression. The list is ordered by the algebraic extensions
required to build the original expression.
algvar(Expr)
Example:
algvar(sqrt(x)+y)
gives
[[y],[x]]
alog10 Returns the solution when 10 is taken to the power of an
expression.
alog10(Expr)
Example:
alog10(3)
gives
1000
altitude Draws the altitude through A of the triangle ABC.
altitude(Pnt or Cplx(A),Pnt or Cplx(B),Pnt or
Cplx(C))
Example:
altitude(A,B,C)
draws a line passing through point A
that is perpendicular to BC.
AND Logical And.
expr1 AND expr2
Example:
3 +1==4 AND 4 < 5
returns
1
.
angleatraw Displays the value of the measure of the angle AB-AC at point
z0.
angleatraw(Pnt(A),Pnt(B),Pnt(C),(Pnt or
Cplx(z0)))
Ans Returns the previous answer.
Ans