Use the summation and product operators to add and multiply sequences of terms. You can either cast the elements to be summed or multiplied as vectors, or you can implicitly specify the elements in the range of the operator itself.

Start by defining an upper limit, and the equivalent integer range, of a sequence.

You can use the summation operator to perform the summation of a sequence. As you insert the summation operator, only fill the placeholders that you need and leave the other ones empty.

You can use the product operator to calculate the product of a sequence. As for the summation operator, only fill the placeholders that you need.

You can perform multiple summations or products.

You can use a variable summation limit.

You can use summations or products in function definitions. Here, the argument of the function controls the upper limit of the summation.