Add two power series.

Add two power series.

Multiply a power series by a constant.

Multiply a power series by a constant.

print eval in floating point of PS at x=c to n terms.

Copy the values from channel 'in' to channel 'out', removing those divisible by 'prime'.

Send the sequence 2, 3, 4, ..

Integrate, with const of integration.

Integrate, with const of integration.

Print n terms of a power series.

The prime sieve: Daisy-chain Filter processes together.

Return a chan int of primes.

thread together a daisy chain to read the elements in sequence.

Heap of PeekCh, sorting by head values, satisfies Heap interface.