Monday, August 08, 2005

Solutions Developed for Verification Testing

The Following Soutions are available in Java EE and C# Languages

1. Linear Equations : First Order: y' = f(x,y), where f is a given function of two variables. Initail value problem dy/dx = (3x2 + 4x + 2)/2(y-1), y(0)= -1
Solution in Java the differential equation is written as
2(y-1) dy = (3x2+4x+2) dx. Integrate the left side with respect to y and the right-hand side with respect to x gives
y2 - 2y = x**3 + 2x**2 + 2x + c



2. Homogeneous equations dy/dx = F(y/x)

3. Compound Interest of a sum of money Su is invested so that in draws interest at a rate of 4 % compounded quarterly. The value is computed algebraically

The frowth of investment as a differential equation = S'(t) = 0.4

4. Create a ListBox assign data to the fields, oop create a new type, ListBox, which encapsulates these characteristics of height, wide, location, text_color, and member methods.