Physlib.QuantumMechanics.PlanckConstant

The reduced Planck's constant $\hbar$ is defined as a positive real number with the value $1.054571817 \times 10^{-34}$ in units of $\text{J} \cdot \text{s}$.

The reduced Planck's constant $\hbar$ is strictly positive, i.e., $0 < \hbar$.

The reduced Planck's constant $\hbar$ is non-negative, i.e., $0 \le \hbar$.

The reduced Planck constant $\hbar$ is not equal to zero, i.e., $\hbar \neq 0$.

The Planck constant $h$ is defined as a positive real number satisfying the relation $h = 2\pi\hbar$, where $\hbar$ is the reduced Planck constant.

Planck's constant $h$ is strictly positive, i.e., $h > 0$.

The Planck constant $h$ is non-negative, satisfying the inequality $0 \le h$.

The Planck constant $h$ is not equal to zero: $h \neq 0$.

The Planck constant $h$ is equal to $2\pi$ times the reduced Planck constant $\hbar$: $$h = 2\pi\hbar$$