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Andreyy89
3 years ago
10

Why do we use number calculations in programming

Computers and Technology
1 answer:
lisov135 [29]3 years ago
7 0

Answer:

Standard arithmetic is used in many functions of programming. Addition, subtraction, multiplication and division are used in almost every program. Algebra is used to solve simple problems that many computer programmers will encounter

<em>eg:</em>

<em>Obtaining a computer science degree requires completing many math classes</em>

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Uses of the following button in a keyboard: Prt SC, Home, Shift, Tab, Pg Up.​
creativ13 [48]

Answer:

This Print Screen key is used to take the screenshots of all that is appearing on the screen, and this can then be pasted in paint and saved in some location of the computer.

The Home key takes the cursor from the current position to the top left, or the start of the file.

Shift: There are two shift keys. And they are used to print the character in the capital. And when the caps lock is busy it can be used to print in lower case. It is also used together with arrow keys to select a part of the text.

Tab: This key moves the cursor from the current location to the location which we know as tab stops ( and the very next one).

Pg Up:​ The page up is being used for scrolling up, and the distance to which limit the scrolling will take place depends upon the application you are working on.

Explanation:

Please check the answer.

4 0
3 years ago
What are the supercomputers and where are they used? ​
viktelen [127]

Answer:

Giant Tech Company mostly

Explanation:

they used it as their server or storing data, right now example we googling by that we send the requests from our computer to supercomputers and those computer will find that information your and send back the respond (e.g. website Brainly). Supercomputers = computers sample as that.

6 0
2 years ago
Suppose that you are asked to modify the Stack class to add a new operation max() that returns the current maximum of the stack
Advocard [28]

Answer:

Following are the code to the given points:

Explanation:

For point 8.1:

public String max()//defining a method max

{

   String maxVal=null;//defining a string variable that holds a value

   for(int x=0;x<n;x++)

   {

       if(maxVal==null || a[i].compareTo(maxVal)>0)//defining if blok to comare the value

       {

           maxVal=a[i];//holding value in maxVal variable

       }

   }

   return maxVal;//return maxVal variable value

}

For point 8.2:

public void push(String item)//defining a method push that accepts item value in a parameter

{

       a[n]=item;//defining an array to hold item value

       if(n==0 || item.compareTo(maxVals[n-1])>0)//use if to comare item value

       {

               maxVals[n]=item;//holding item value in maxVals variable

       }

       else

       {

               maxVals[n]=maxVals[n-1];//decreasing the maxVals value

       }

       n++;//incrementing n value

}

public String pop()//defining a method pop

{

       return a[--n];//use return value

}

public String max()//defining a method max

{

       return maxVals[n-1];//return max value

}

  • In the first point, the max method is declared that compares the string and returns its max value.
  • In the second point, the push, pop, and max method are declared that works with their respective names like insert, remove and find max and after that, they return its value.
7 0
3 years ago
Consider a pipelined than can issue up to one instruction per cycle, but fewer may be issued because of pipeline hazards, multi-
a_sh-v [17]

Answer:

Achieved Instruction per cycle rate is 4.11\times 10^{15}

Solution:

As per the question:

Execution time, t = 1.4 s

No. of instructions being executed, n = 1.8 billion =

Clock speed of CPU, f = 3.2 GHz = 3.2\times 10^{9} Hz

Now, to calculate the actual issue rate achieved:

CPI (Cycle per Instruction) = \frac{t}{n\times f}

CPI = \frac{1.4}{1.8\times 10^{6}\times 3.2\times 10^{9}}

Instruction per cycle is given as the reciprocal of CPI:

Instruction per cycle = \frac{1.8\times 10^{6}\times 3.2\times 10^{9}}{1.4} = 4.11\times 10^{15}

6 0
3 years ago
Write a class called MagicSquare, which contains a single method called check that accepts a two-dimensional array as an argumen
ira [324]

Answer:

public class MagicSquare {

   public static void main(String[] args) {

       int[][] square = {

               { 8, 11, 14, 1},

               {13, 2, 7,12},

               { 3, 16, 9, 6},

               {10, 5, 4, 15}

       };

       System.out.printf("The square %s a magic square. %n",

               (isMagicSquare(square) ? "is" : "is not"));

   }

   public static boolean isMagicSquare(int[][] square) {

       if(square.length != square[0].length) {

           return false;

       }

       int sum = 0;

       for(int i = 0; i < square[0].length; ++i) {

           sum += square[0][i];

       }

       int d1 = 0, d2 = 0;

       for(int i = 0; i < square.length; ++i) {

           int row_sum = 0;

           int col_sum = 0;

           for(int j = 0; j < square[0].length; ++j) {

               if(i == j) {

                   d1 += square[i][j];

               }

               if(j == square.length-i-1) {

                   d2 += square[i][j];

               }

               row_sum += square[i][j];

               col_sum += square[j][i];

           }

           if(row_sum != sum || col_sum != sum) {

               return false;

           }

       }

       return d1 == sum && d2 == sum;

   }

}

5 0
3 years ago
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