simple coding, how to write (x-1)...(x-n)

How would i write (x-1)(x-2)....(x-n)

for a given n in matlab

Answer 1

[Image Analyst]

Try this:

result = 1
for k = 1 : n
    result = result * (x - k);
end

[ahmed lamak]

i gave a simple example as the zeros being 1 : n, if they were rather complicated values and denoted as say z(1),z(2),...,z(n) this method wont work?

[Image Analyst]

You can do this:

result = 1
for k = 1 : length(z)
    result = result * (x - z(k));
end

Answer 2

[Stephen23]

The simplest solution, without any loops:

 prod(x-z)

[Walter Roberson]

I do not understand why you are raising to the z'th power ??

[Stephen23]

@Walter Roberson: experimenting around, and not paying enough attention to the copy-and-paste :(