\_form#0=28x19:$\frac{\sin(x)}{x}$
\_form#1=18x15:$|c|^2$
\_form#2=116x14:$out(k) = in(k) \cdot scale$
\_form#3=125x15:$out(k) = in(k) \cdot e^{j \cdot rps \cdot k}$
\_form#4=191x15:$(f * g)[n] = \sum_{m=-\infty}^{\infty} f[m] \; g[n-m]$
\_form#5=196x15:$(f \star g)[n] = \sum_{m=-\infty}^{\infty} f^*[m] \; g[n+m]$
\_form#6=19x15:$|x|^2$