Simple, large graphics we can use centimeter ruler, but some of the complex, precise graphics we use millimeter ruler. If we use a large graphics mm scale is not easy to observe that if a small graphic with a centimeter scale error will be larger.

Simple, big graphics we can use cm ruler, but some of the complex, and accurate graphics we want to use mm ruler. Because, if we have the graphics used on the mm gauge is not easy to watch, if a small graphics using the CM ruler error will be larger.

Simple, the big graph we may use a centimeter rod, but some complex, the accurate graph we must use a millimeter rod.If because our big graph used a millimeter rod not to be advantageous for the observation, if the small graph used the centimeter staff error to be able to be big.

Simple, large graphics, we can use a centimeter ruler, but some complex and accurate graphic we want to use millimeter ruler. Graphic because if we observed by millimeter ruler is not easy to, if small graphical errors are large the CM ruler.

Simple, large graphics, we can use a centimeter ruler, but some complex and accurate graphic we want to use millimeter ruler. Because if our graphics with millimeter ruler would not facilitate the observation, if a small graphics with a centimeter ruler error will be larger.