For a beam run of 20 feet in a basement with an even load from a two-story structure using 2x8 construction spaced 16 inches on center, you’ll need to determine the appropriate beam size and material to support the load safely. Typically, a structural engineer would recommend a beam made of either engineered wood (like LVL or glulam) or steel, depending on the specific load calculations. Additionally, you’ll need to consider factors like local building codes and any necessary supports or footings for the beam. Always consult with a professional for accurate sizing and compliance with safety regulations.
#include<iostream> struct shape { virtual double perimeter() const = 0; virtual double area() const = 0; }; struct circle : shape { circle (double radius): r(radius), pi(4*atan(1)) {} double perimeter() const { return 2*pi*r; } double area() const { return pi*r*r; } private: double r; const double pi; }; struct rectangle : shape { rectangle (double width, double height): w(width), h(height) {} double perimeter() const { return 2*(w+h); } double area() const { return w*h; } private: double w; double h; }; int main() { using std::cout; using std::endl; circle c (3.0); cout << "Circle with radius 3.0\n"; cout << "\tPerimiter: " << c.perimiter() << '\n'; cout << "\tArea: " << c.area() << '\n'; cout << endl; rectangle r (4.0, 5.0); cout << "Rectangle with width 4.0 and height 5.0\n"; cout << "\tPerimiter: " << r.perimiter() << '\n'; cout << "\tArea: " << r.area() << '\n'; cout << endl; }
void draw_box (const unsigned size) { if (!size) return; // size must be non-zero! const char star {'*'}; // asterisk const char nl {'\n'}; // newline if (size==1) { // a box of size 1 is just a single asterisk std::cout << star << nl; return; } // else if (1 < size) ... // the top and bottom lines are the same const std::string line (size, star); // hollow line (spaces) const std::string hollow (size-2, ' '); // draw the top line std::cout << line << nl; // draw the middle lines (if size>2) for (unsigned i=2; i<size; ++i) std::cout << star << hollow << star << nl; // draw the bottom line std::cout << line << nl; }
Outside of a class definition, constants can be declared with the define function. The function has two arguments; the name of the constant (a string), and the value of the constant (any variable type).Inside a class definition, constants can be declared with the const keyword. Type the word const, the name of the constant in the form of how it will be called later, an "equals sign," then the desired value of the constant.In both cases, here is an example.
anti derivative of ax^n is (a/n+1)x^(n+1) a is a const n is power of variable and answere6x^2
#include<stdio.h> const unsigned int rows = 10; const unsigned int cols = 3; int table[rows][cols]; int square (const int n) { return n * n; } int cube (const int n) { return n * n * n; } void initialise_table (void) { int x, y, val; for (x=0; x<rows; ++x) { val = x+1; table[x][0] = val; table[x][1] = square (val); table[x][2] = cube (val); } } int main (void) { int x, y; initialise_table (); printf ("Value\tSquare\tCube\n"); for (x=0; x<rows; ++x) { printf("%d\t%d\t%d\n", table[x][0], table[x][1], table[x][2]); } return 0; }
Everything. "inline" refers to functions, "const" refers to variables.
Declaring a Constant: We can declare a constant using the keyword "const". E.g. const abc='a';const number=10; const number[10]={1,2,3,4,5,6,7,8,9,10}; const name[7]={'K','U','N','D','A','N'}; #include<stdio.h> #include<conio.h> void main() { int i; const name[7]={'K','U','N','D','A','N'}; for(i=0;i<7;i++) { printf("%c",name[i]); getch(); }
in stdio.h:extern int printf (const char *fmt, ...);
const type, for instance (const double = 1.1; this you cannot change during run)
1960(independence constitution). Since then,there has been the 1963 republican constitution, the 1975 const., [ the aborted 1989 const., the aborted 1993 const.,] and the currently operating 1999 constitution
If you mean the "general equation of a cone" to be the elliptical cone equation: z = √( (x/a)2 + (y/b)2 ) ... then the function in C to compute this given the proper variables is: double genEqCone(const double x, const double y, const double a, const double b) { const double X_A = (x/a); const double Y_B = (y/b); return sqrt((X_A * X_A) + (Y_B * Y_B)); }
You cannot change the value of a const variable. That's what const means - it is constant. If you are considering "trickery" using pointers and the scanf function, understand that this is not supported, is highly non portable, and may fail, depending on whether or not the implementation places its const data in read only memory. Besides, most modern compilers will not allow you to place a const variable as a non-const argument to a function. Use the language within its defined boundaries.
int printf (const char *fmt, ...)orint scanf (const char *fmt, ...)
Well, uh, const unsigned int and const signed int..
int const *p declares a 'p' pointer, that points to a constant integer
"const."
const