Sinus Cardinal Function
This calculator finds the numerical value of the sinus cardinal function \[ \mathrm{sinc}_a(x) = \frac{\sin\left(\frac{\pi x}{a}\right)}{\left(\frac{\pi x}{a}\right)} \] and the hyperbolic sinus cardinal function \[ \mathrm{sinhc}_a(x) = \frac{\sinh\left(\frac{\pi x}{a}\right)}{\left(\frac{\pi x}{a}\right)} \] where $x$ and $a$ are real numbers with $a>0$.