HP Prime Graphing Calculator - Manual (Page 394)

388 Functions and commands
delcols Given a matrix and an integer n, deletes the nth column from
the matrix and returns the result. If an interval of two integers
is used instead of a single integer, deletes all columns in the
interval and returns the result.
delcols(Matrix, Integer) or delcols(Matrix,
Intg1..Intg2)
Example:
delcols
returns
delrows Given a matrix and an integer n, deletes the nth row from the
matrix and returns the result. If an interval of two integers is
used instead of a single integer, deletes all rows in the interval
and returns the result.
delrows(Matrix, Integer) or delrows(Matrix,
Intg1..Intg2)
Example:
delrows
returns
deltalist Returns the list of the differences between consecutive terms in
the original list.
deltalist(Lst)
Example:
deltalist([1,4,8,9])
gives
[3,4,1]
Dirac Returns the value of the Dirac delta function for a real number.
Dirac(Real)
Example:
Dirac(1)
gives
0
e Enters the mathematical constant e (Euler’s number).
1 2 3
4 5 6
7 8 9
2 
 
 
 
 
 
1 3
4 6
7 9
1 2 3
4 5 6
7 8 9
2..3 
 
 
 
 
 
1 2 3