Analytical Algorithm for Capacities of Classical and Classical-Quantum Channels

We derive an analytical algorithm for the channel capacity of a classical without any iteration, while its existing algorithms require iterations and number depends on required precision level. Hence, our is first this task needs several conditions channel. apply obtained to examples, see how works in these examples. Then, we extend it classical-quantum (cq-) Many studies proposed cq-channel all them iterations. Our extended has also no outputs exactly optimum value.