AME 150L Lecture Notes - Lecture 14: Pseudocode, Stored-Program Computer, Differential Analyser
13 Mar 2015
School
Department
Course
Professor
Document Summary
Ame 150: introduction to computational methods - lecture 14: projectiles. Maximum height corresponds to =90 t2= 2 v0(sin(90))/g= 2v0/g h= y(1/2t 2) because curve is symmetric half-way through = maximum height. *italics symbolize the pseudocode: create array of angles =(ii 1) ,ii=1,2,. ,91 for ii=1:91 theta thetar(theta radians) (ii 1); theta ( pi/180); convert degrees radians xy0 v0 cos(thetar); vy0 v0 sin(thetar); traj _ time 2 vy0/ g; range(ii) vx0 traj _ time end. [maxrangeindex ]=max (range) matlab fcnthat scans the array. One of the first computers developed to look an interior and exterior ballistics of a gun. Calculated a set of firing tables for each specific weapon, for a range of environments and weather conditions. Originally took about 20 hours to calculate a 60 second trajectory with desk computers. But the real difference came with john mauchly who suggested that a faster speed for these calculations could be obtained if electronics were used.
