Introduction c c sim4.for calculates the NMR spectrum for quasicrystalline c materials following the method of Warren, et.al [1]. c Standard line shape numerical synthesis methods have c been taken from papers [2-4]. Reference [4] gives explicit c formulas for the first and second order contributions to c level spacings and was used for programming these interactions, c For a description of the workings of the program, programming c shortcuts used, testing, and problems, see A. Shastri's notebook c "Al-Pd-MnNMR". c n. Program Description c c A. Frequency Scan Simulation. This program was written c to simulate NMR freq scans for a powder. The program takes c input parameters from an input file that c must be formatted in the following way: c c 1 2 3 4 C1234567890123456789012345678901234567890 (This line for reference only.) c c reference frequency (Hz) = 90.963e6 cnuclear gamma factor (H^esla) = 11.094e6 c nuclear spin I = 2.5 c asynmietry parameter eta= 0.1 c mean nuQ (Hz) = 1.6e6 c deviation of nuQ (Hz) = .22e6 138 c theta,phi division = 100. c integral tolerance = .01 G number of freqcy points = 100. c beginning freq (Hz) = 89.e6 c ending freq (Hz)= 94.e6 c beginning eta = 0.1 c ending eta = 0.4