Calculate the angle between two 3d vectors | C# Online Compiler

Calculate the angle between two 3d vectors by Chris Crowe

using System;

public class Program
{
	public class Vector3
	{
		public double X;
		public double Y;
		public double Z;
		public Vector3(double x, double y, double z)
		{
			this.X = x;
			this.Y = y;
			this.Z = z;
		}
	}
	
	// https://www.vcalc.com/wiki/vCalc/V3+-+Angle+between+vectors
 	// https://www.analyzemath.com/stepbystep_mathworksheets/vectors/vector3D_angle.html
	public static void Main()
	{
		//	if (p1 == 3,-4,1 and p2 == 0,0,4 then AngleInDegrees =  78.6900675080125 decimal degrees
		
		Vector3 p1 = new Vector3(3, -4, 1);
		Vector3 p2 = new Vector3(0, 0, 4);
		
		double dotProduct = (p1.X * p2.X) + (p1.Y * p2.Y) + (p1.Z * p2.Z);
		Console.WriteLine("Dot product = {0}", dotProduct);			
		
		double Magnitude1 = Math.Pow(p1.X, 2) + Math.Pow(p1.Y, 2) + Math.Pow(p1.Z, 2);
		double Magnitude2 = Math.Pow(p2.X, 2) + Math.Pow(p2.Y, 2) + Math.Pow(p2.Z, 2);
		
		Console.WriteLine("Magnitude1 = {0}", Magnitude1);
		Console.WriteLine("Magnitude2 = {0}", Magnitude2);
		
		double MagnitudeOfVector1 = Math.Sqrt(Magnitude1);
		double MagnitudeOfVector2 = Math.Sqrt(Magnitude2);
		
		Console.WriteLine("Magnitude of vector1 = {0}", MagnitudeOfVector1);
		Console.WriteLine("Magnitude of vector2 = {0}", MagnitudeOfVector2);
				
		double AngleInRadians = Math.Acos(dotProduct /  (MagnitudeOfVector1 * MagnitudeOfVector2));
		
		Console.WriteLine("AngleInRadians = {0}", AngleInRadians);
		double RadiansToDegrees = 57.2957795;
		Console.WriteLine("AngleInDegrees = {0}", AngleInRadians * RadiansToDegrees);
	}
}

​x
 
using System;
​
public class Program
{
    public class Vector3
    {
        public double X;
        public double Y;
        public double Z;
        public Vector3(double x, double y, double z)
        {
            this.X = x;
            this.Y = y;
            this.Z = z;
        }
    }
    
    // https://www.vcalc.com/wiki/vCalc/V3+-+Angle+between+vectors
    // https://www.analyzemath.com/stepbystep_mathworksheets/vectors/vector3D_angle.html
    public static void Main()
    {
        //  if (p1 == 3,-4,1 and p2 == 0,0,4 then AngleInDegrees =  78.6900675080125 decimal degrees
        
        Vector3 p1 = new Vector3(3, -4, 1);
        Vector3 p2 = new Vector3(0, 0, 4);
        
        double dotProduct = (p1.X * p2.X) + (p1.Y * p2.Y) + (p1.Z * p2.Z);
        Console.WriteLine("Dot product = {0}", dotProduct);         
        
        double Magnitude1 = Math.Pow(p1.X, 2) + Math.Pow(p1.Y, 2) + Math.Pow(p1.Z, 2);
        double Magnitude2 = Math.Pow(p2.X, 2) + Math.Pow(p2.Y, 2) + Math.Pow(p2.Z, 2);
        
        Console.WriteLine("Magnitude1 = {0}", Magnitude1);
        Console.WriteLine("Magnitude2 = {0}", Magnitude2);
        
        double MagnitudeOfVector1 = Math.Sqrt(Magnitude1);
        double MagnitudeOfVector2 = Math.Sqrt(Magnitude2);
        
        Console.WriteLine("Magnitude of vector1 = {0}", MagnitudeOfVector1);
        Console.WriteLine("Magnitude of vector2 = {0}", MagnitudeOfVector2);
                
        double AngleInRadians = Math.Acos(dotProduct /  (MagnitudeOfVector1 * MagnitudeOfVector2));
        
        Console.WriteLine("AngleInRadians = {0}", AngleInRadians);
        double RadiansToDegrees = 57.2957795;
        Console.WriteLine("AngleInDegrees = {0}", AngleInRadians * RadiansToDegrees);
    }
}

Compilation error (line 23, col 14): Extension method must be defined in a non-generic static class
Compilation error (line 212, col 21): Inconsistent accessibility: return type 'Program.Order' is less accessible than method 'Program.FindLastDeliveredOrderAfterFirstOfMonth(List<Program.Order>)'
Compilation error (line 212, col 21): Inconsistent accessibility: parameter type 'List<Program.Order>' is less accessible than method 'Program.FindLastDeliveredOrderAfterFirstOfMonth(List<Program.Order>)'
Compilation error (line 172, col 40): 'Dictionary<string, string>' does not contain a definition for 'GetValueOrNull' and no accessible extension method 'GetValueOrNull' accepting a first argument of type 'Dictionary<string, string>' could be found (are you missing a using directive or an assembly reference?)
Compilation error (line 173, col 38): 'Dictionary<string, string>' does not contain a definition for 'GetValueOrNull' and no accessible extension method 'GetValueOrNull' accepting a first argument of type 'Dictionary<string, string>' could be found (are you missing a using directive or an assembly reference?)
Compilation error (line 203, col 29): 'Program.Order.status' is inaccessible due to its protection level
Compilation error (line 204, col 29): 'Program.Order.status' is inaccessible due to its protection level
Compilation error (line 205, col 29): 'Program.Order.status' is inaccessible due to its protection level
Compilation error (line 216, col 80): 'Program.Order.status' is inaccessible due to its protection level
Compilation error (line 238, col 29): 'Program.Order.status' is inaccessible due to its protection level
Compilation error (line 239, col 29): 'Program.Order.status' is inaccessible due to its protection level
Compilation error (line 240, col 29): 'Program.Order.status' is inaccessible due to its protection level
Compilation error (line 244, col 80): 'Program.Order.status' is inaccessible due to its protection level
Compilation error (line 263, col 13): 'Program.Order.status' is inaccessible due to its protection level
Compilation error (line 278, col 19): 'Program.Order.status' is inaccessible due to its protection level
Compilation error (line 280, col 19): 'Program.Order.status' is inaccessible due to its protection level
Compilation error (line 283, col 29): 'Program.Order.status' is inaccessible due to its protection level

Last Run:	7:47:22 am
Compile:	0.081s
Execute:	0s
Memory:	0b
CPU:	0s

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