The app evaluates the values of some basic parameters used in nuclear magnetic resonance (NMR) spectroscopy.

Nucleus
- Select an isotope with non-zero nuclear spin to find out its nuclear spin, gyromagnetic ratio, and natural abundance.
- For a chosen isotope, its Larmor frequency at a specified external magnetic field together with the Larmor frequencies of the proton and free electron will be shown.
- With changing one of the above-mentioned values, the other three values will be recalculated.
- Filter the list by nuclear spin

Signal
- Given one of the number of data points, duration, and dwell time for signal acquisition, the others will be calculated.
- Given one of the number of data points, spectral width, and frequency resolution for a NMR spectrum , the others will be calculated.

RF Pulse
- Given one of the pulse duration, flip angle, and RF amplitude of a RF pulse, the others will be calculated.
- The relative difference between the power levels of two RF pulses is presented in dB.

Ernst Angle
- Given one of the repetition time, relaxation time, and Ernst angle, the others will be calculated.