Hp Prime Graphing Wireless Calculator Instrukcja Użytkownika Pobierz pdf (Strona 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

-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=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

12,,

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1 2 ... 205 206 207 208 209 210 211 212 213 214 215 ... 333 334

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Hp Prime Graphing Wireless Calculator Instrukcja Użytkownika Strona 210