Mathematics, 05.07.2019 18:40 sakinahunt

Nine coins are placed in a 3x3 matrix with some face up and some face down. you can represent the state of the coins using a 3x3 matrix with values 0 (heads) and 1 (tails). here are some examples: 0 0 0 1 0 1 1 1 0 0 1 0 0 0 1 1 0 0 0 0 0 1 0 0 0 0 1 each state can also be represented using a binary number. for example, the preceding matrices correspond to the numbers: 000010000 101001100 110100001 there are a total of 512 possibilities, so you can use decimal numbers 0, 1, 2, to represent all the states of the matrix. write a program that prompts the user to enter a number between 0 and 511 and displays the corresponding matrix with the characters h and t.

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Hello,

Here is the program in QB64

CONST Ordre = 3
DIM SHARED mat(1 TO Ordre, 1 TO Ordre) AS INTEGER, n AS INTEGER
CALL ReadN
CALL MakeMat
CALL SeeMat
END

SUB ReadN
SHARED n AS INTEGER
DIM k AS INTEGER
INPUT "0<=n<=511"; k
IF k < 0 OR k > (2 ^ (Ordre * Ordre)) - 1 THEN PRINT "erreur de valeur de n"; n: END
n = k
END SUB

SUB MakeMat
SHARED mat() AS INTEGER, n AS INTEGER
DIM i AS INTEGER, j AS INTEGER, x AS INTEGER
x = n
FOR i = 1 TO Ordre
    FOR j = 1 TO Ordre
        mat(i, j) = x MOD 2
        x = INT(x / 2)
    NEXT j
NEXT i
END SUB

SUB SeeMat
SHARED mat() AS INTEGER
DIM i AS INTEGER, j AS INTEGER
FOR i = 1 TO Ordre
    FOR j = 1 TO Ordre
        IF mat(i, j) = 0 THEN
            PRINT "h|";
        ELSE
            PRINT "t|";
        END IF
    NEXT j
    PRINT " "
NEXT i
END SUB

Answer from: Quest

step-by-step explanation:

Answer from: Quest

answer: a video game has three difficulty levels: easy, medium, and expert. the game's scoring works in such a way that a player has to score a fixed number of points to advance to the next level, and then the scoring starts over. the total score needed to clear all three difficulty levels is 7,500. two times the number of points needed to clear the easy level is 500 more than the number of points needed to clear the medium level. twice the number of points needed to clear the medium difficulty level is 1,500 more than the number of points needed to clear the expert level. if x, y, and z represent the easy, medium, and expert levels, respectively, and a is the coefficient matrix of the system of equations modeling this situation, identify the inverse matrix, a-1, and the solution matrix, x, of the system of equations.

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rauschg

rauschg · hand

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