HP Prime Graphing Calculator User Manual
Page 419

Functions and commands
413
residue
Returns the residue of an expression at a value.
residue(Expr, Var, Value)
Example:
residue(1/z,z,0)
returns
1
restart
Purges all the variables.
restart(NULL)
resultant
Returns the resultant (i.e. the determinant of the Sylvester
matrix) of two polynomials.
resultant(Poly1, Poly2, Var)
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]
1 2 3
4 5 6
7 8 9
2