HP Prime Graphing Wireless Calculator User Manual

Page 209

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Functions and commands

205

Example:

resultant(x^3+x+1, x^2-x-2,x) returns -11

revlist

Reverses the order of the elements in a list or vector.

revlist(List) or revlist(Vector)

Example:

revlist([1,2,3])

returns

[3,2,1]

romberg

Uses Romberg’s method to return the approximate value of a

definite integral.

romberg(Expr, Var, Val1, Val2)

Example:

romberg(exp(x^2),x,0,1)

gives

1.46265174591

row

Given a matrix and an integer n, returns the row n of the

matrix. Given a matrix and an interval, returns a vector

containing the rows of the matrix indicated by the interval.

row(Matrix, Integer) or row(Matrix, Interval)

Example:

row

returns

[4 5 6]

rowAdd

Given a matrix and two integers, returns the matrix obtained

from the given matrix after the row indicated by the second

integer is replaced by the sum of the rows indicated by the

two integers.

rowAdd(Matrix, Integer1, Integer2)

Example:

rowAdd

returns

rowDim

Returns the number of rows of a matrix.

rowDim(Matrix)

Example:

rowDim

gives

2

1 2 3
4 5 6
7 8 9

2

,

1 2
3 4
5 6

1 2

, ,

1 2
4 6
5 6

1 2 3
4 5 6

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