HP Prime Graphing Wireless Calculator - Manual (Page 210)

206 Functions and commands
rowSwap Given a matrix and two integers, returns the matrix obtained
from the given matrix after swapping the two rows indicated
by the two integers.
rowSwap(Matrix,Integer1,Integer2)
Example:
rowSwap
returns
rsolve Given an expression defining a recurrence relation, a
variable, and an initial condition, returns the closed form
solution (if possible) of the recurrent sequence. Given three
lists, each containing multiple items of the above nature,
solves the system of recurrent sequences.
rsolve(Expr, Var, Condition) or rsolve(List1,
List2, List3)
Example:
rsolve(u(n+1)=2*u(n)+n,u(n),u(0)=1) returns
[-n+2*2
n -1]
select Given a test expression in a single variable and a list or
vector, tests each element in the list or vector and returns a list
or vector containing the elements that satisfy the test.
select(Test, List) or select(Test, Vector)
Example:
select(x→x>=5,[1,2,6,7])
returns
[6,7]
seq Given an expression, a variable defined over an interval, and
a step value, returns a vector containing the sequence
obtained when the expression is evaluated within the given
interval using the given step. If no step is provided, the step
used is 1.
seq(Expr, Var=Interval, [Step])
Example:
seq(2 k ,k=0..8)
gives
[1,2,4,8,16,32,64,128,256]
seqsolve Similar to rsolve. Given an expression defining a recurrence
relation in terms of n and/or the previous term (x), followed
by a vector of variables and an initial condition for x (the 0th
term), returns the closed form solution (if possible) for the
recurrent sequence. Given three lists, each containing multiple
1 2
3 4
5 6
1 2 , ,
 
 
 
 
 
3 4
1 2
5 6