This function defines the integrand for the Gaussian-Legendre integration method.
It calculates the product of two parts:
1. A power function of \( u_ij \), and
2. An exponential function involving `y_tilde`, `v_tilde`, and `tau_tilde`.
Usage
Integrand_fun(u_ij, y_tilde, v_tilde, tau_tilde)
Arguments
- u_ij
Numeric, a sample value for the integration variable.
- y_tilde
Numeric, parameter for the exponential function.
- v_tilde
Numeric, parameter for the exponential function.
- tau_tilde
Numeric, parameter for the exponential function.
Value
The value of the integrand at the given `u_ij`.
