Real numbers

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The set $\mathbb{R}$ of real numbers is a time scale.

$\mathbb{T}=\mathbb{R}$
Jump operator: $\sigma(t)=t$
Graininess operator: $\mu(t)=0$
$\Delta$-derivative: $f^{\Delta}(t)=\displaystyle\lim_{h\rightarrow 0} \dfrac{f(t+h)-f(t)}{h}$
$\Delta$-integral: $\displaystyle\int_s^t f(\tau) \Delta \tau = \displaystyle\int_s^t f(\tau) d\tau$ is the Riemann integral