Hp 50g Graphing Calculator Manual do Utilizador descarregar pdf (Página 312)

100

101

Page 10-11

If using RPN mode, we assume that the matrix is in the stack and use {6} `

RDM.

Function RANM

Function RANM (RANdom Matrix) will generate a matrix with random integer

elements given a list with the number of rows and columns (i.e., the dimensions

of the matrix). For example, in ALG mode, two different 2×3 matrices with

random elements are produced by using the same command, namely,

R NM({2,3}) :

In RPN mode, use {2,3} ` RNM.

Obviously, the results you will get in your calculator will most certainly be

different than those shown above. The random numbers generated are integer

numbers uniformly distributed in the range [-10,10], i.e., each one of those 21

numbers has the same probability of being selected. Function RANM is useful

for generating matrices of any size to illustrate matrix operations, or the

application of matrix functions.

Function SUB

Function SUB extracts a sub-matrix from an existing matrix, provided you

indicate the initial and final position of the sub-matrix. For example, if we want

to extract elements a

, a

, and a

from the last result, as a 2×2 sub-

matrix, in ALG mode, use:

Note: Function RDM provides a more direct and efficient way to transform lists

to arrays and vice versa, than that provided at the end of Chapter 9.

1 2 ... 307 308 309 310 311 312 313 314 315 316 317 ... 886 887

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