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How do you calculate circular curve?
x2 + y2 = r2 Where "x" and "y" represent the co-ordinates of any point on the curve relative to it's center point, and "r" represents it's radius. If you want to specify a curve that goes around a specific point (we'll call it {a, b}), then that can be expressed as: (x - a)2 + (y - b)2 = r2
What do you call a set of elements which belong to A or to B or to both?
The union of A and B.
How do you graph the function y equals 2 thirdsx?
To plot y = 2x/3, mark the origin, O, on the Cartesian plane. Think of any multiple of 3. Call this value a. Calculate 2*a/3 and call this value b. Let P be the point (a, b). Join OP and extend in both directions. Incidentally, a need not be a multiple of 3, but the calculations are simpler if it is.
How do you write an equation in standard form of a circle with a center and radius?
The standard equation of a circle, with center in (a,b) and radius r, is: (x-a)2 + (y-b)2 = r2
Swap two numbers using call by value and call by reference?
You cannot swap two numbers using call by value, because the called function does not have access to the original copy of the numbers.Swap with call by reference... This routine uses exclusive or swap without temporary variable.void swap (int *a, int *b) {*a ^= *b;*b ^= *a;*a ^= *b;return;}
