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AlexFokin [52]
3 years ago
9

Explain four sitting postures in a computer laboratory​

Computers and Technology
1 answer:
Flura [38]3 years ago
8 0
1. Push hips back
2. Adjust seat
3. Sit up straight and roll your shoulders back
4. Feet flat on floor
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Write a program in C/C++ to draw the following points: (0.0,0.0), (20.0,0.0), (20.0,20.0), (0.0,20.0) and (10.0,25.0). For this
Fed [463]

Introductory program; just a static picture of a colored triangle.
Shows how to use GLUT.
Has minimal structure: only main() and a display callback.
Uses only the default viewing parameters (in fact, it never mentions viewing at all). This is an orthographic view volume with bounds of -1..1 in all three dimensions.
Draws only using glColor and glVertex within glBegin and glEnd in the display callback.
Uses only the GL_POLYGON drawing mode.
Illustrates glClear and glFlush.
triangle.cpp
// A simple introductory program; its main window contains a static picture
// of a triangle, whose three vertices are red, green and blue. The program
// illustrates viewing with default viewing parameters only.

#ifdef __APPLE_CC__
#include
#else
#include
#endif

// Clears the current window and draws a triangle.
void display() {

// Set every pixel in the frame buffer to the current clear color.
glClear(GL_COLOR_BUFFER_BIT);

// Drawing is done by specifying a sequence of vertices. The way these
// vertices are connected (or not connected) depends on the argument to
// glBegin. GL_POLYGON constructs a filled polygon.
glBegin(GL_POLYGON);
glColor3f(1, 0, 0); glVertex3f(-0.6, -0.75, 0.5);
glColor3f(0, 1, 0); glVertex3f(0.6, -0.75, 0);
glColor3f(0, 0, 1); glVertex3f(0, 0.75, 0);
glEnd();

// Flush drawing command buffer to make drawing happen as soon as possible.
glFlush();
}

// Initializes GLUT, the display mode, and main window; registers callbacks;
// enters the main event loop.
int main(int argc, char** argv) {

// Use a single buffered window in RGB mode (as opposed to a double-buffered
// window or color-index mode).
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);

// Position window at (80,80)-(480,380) and give it a title.
glutInitWindowPosition(80, 80);
glutInitWindowSize(400, 300);
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// Tell GLUT that whenever the main window needs to be repainted that it
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6 0
3 years ago
2. Write a program that initializes an array of characters with the phrase, "Take me to Clearwater Beach!". Using pointers, scan
navik [9.2K]

Answer:

Written in C++

#include<iostream>

using namespace std;

int main() {

char myword[] = {'T','a','k','e',' ','m','e',' ','t','o',' ','C','l','e','a','r','w','a','t','e','r',' ','B','e','a','c','h','!', '\0'};

for (char *i = myword; *i != '\0'; ++i){

if( *i >= 'a' && *i <= 'z'){

           *i -= 'a' - 'A';    

       }

   }

   cout<<myword;

   return 0;

}

Explanation:

This line initializes the string to a char array

char myword[] = {'T','a','k','e',' ','m','e',' ','t','o',' ','C','l','e','a','r','w','a','t','e','r',' ','B','e','a','c','h','!', '\0'};

This iterates through the char array

for (char *i = myword; *i != '\0'; ++i){

This checks for uppercase or lowercase

if( *i >= 'a' && *i <= 'z'){

This converts to lowercase

           *i -= 'a' - 'A';

       }

   }

This prints the new string in all uppercase

   cout<<myword;

6 0
3 years ago
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