These calculators are made in such a way that they store the data you are working with on the screen and a mistake can be easily corrected by going through that data on the screen. Moreover, some calculators such as the graphing calculator are used to draw graphs, and therefore analyzing data becomes easier.
This is a machine that finds its application mainly with the road construction civil engineers. This machine technically does the work of laying asphalt on an ongoing road construction. The asphalt paver is fed by a dumper truck and it then evenly spreads to form the road surface. Another machine, the roller, compresses the hot asphalt layer forming an even surface, which is smooth.
A Theodolite is an instrument used by surveyors and civil engineers to measure both horizontal and vertical angles. In order for a building to be erected, some levels are taken by the use of the theodolite. The theodolite is not used alone; a tripod stand comes in handy to make the use of the theodolite efficient. The theodolite is mounted on the tripod stand, and the legs of the tripod stand are adjusted appropriately. The vertical and horizontal angles are viewed through the small eye piece. There are three categories of Theodolites though they all perform the same function. These are the Transit theodolite, the Total station and the Digital theodolite.
A leveling staff is a wooden or aluminum rod, which is used to determine elevation differences. The leveling staff is mostly used by water civil engineers whenever they want to determine a slope of a particular area for the purpose of drainage. The staff has graduations that are in metric units or at time imperial. The leveling rods are often brightly colored so they can be easily sited by a theodolite even when the distance between them is vast.