HP Prime Graphing Calculator - Manual (Page 396)

392 Functions and commands
hyp2exp Returns an expression with hyperbolic terms rewritten as
exponentials.
hyp2exp(ExprHyperb)
Example:
hyp2exp(cosh(x))
gives
(exp(x)+1/exp(x))/2
hyperbola With three points (F1, F2, and M) as arguments, draws an
hyperbola with foci at F1 and F2 that passes though M. With
two points and a real (F1, F2, and a) as arguments, draws an
hyperbola with foci at F1 and F2 that passes through point M
such that |MF1–MF2|=2a. With one second degree
polynomial p(x,y) as argument, draws the hyperbola defined
when the polynomial is set to equal 0.
hyperbola(Focus(F1),Focus(F2),(Pnt(M) or
Real(a)))
Example:
hyperbola(GA,GB,GC)
draws the hyperbola whose foci
are points A and B and which passes through point C
iabcuv Returns [u,v] such as au+bv=c for three integers a,b, and c.
Note that c must be a multiple of the greatest common divisor
of a and b for there to be a solution.
iabcuv(Intg(a),Intg(b),Intg(c))
Example:
iabcuv(21,28,7)
gives
[-1,1]
ibasis Returns the basis of the intersection of two vector spaces.
ibasis(Lst(Vect,..,Vect),Lst(Vect,..,Vect))
Example:
ibasis([[1,0,0],[0,1,0]],[[1,1,1],[0,0,1]])
gives
[[-1,-1,0]]
icontent Returns the greatest common divisor of the integer coefficients
of a polynomial.
icontent(Poly,[Var])
Example:
icontent(24x^3+6x^2-12x+18)
gives
6