Consider it this way. Suppose we all agreed to never use numerical values in the units section of an equation... then in this case we'd need a symbol for cycles

Consider it this way. Suppose we all agreed to never use numerical values in the units section of an equation... then in this case we'd need a symbol for cycles in cycles per second aka Hz. If we leaves Planck's constant as is in E=h(cycle/second), then the units would end up as Joulecycle... odd right? That's what brought me to writing the formula as E=utf I guess it should really be Delta E=u(delta t)f where u is in joules t is (seconds per cycle) and f is (cycles per second)