CISC 101 Lecture Notes - Nan, Pseudocode, Programming Language

• School: Queen's University
• Department: Computing
• Course: CISC 101
• Professor: David Skillicorn

Document Summary

For i=1:10 loop control variable / index increase after each rotation. Ten iterations for 1=1:10 for i=3:12 for i=1:2:20. Disp( another iteration"); display end for i=1:15 a(i)=0; depends on i,but each iteration is independent end. 1 running sum runningsum=1; default value required for i=1:7 come from array size directly end runningsum = runningsum +a(i); Works for empty arrays top = size (a); runningsum=0; works for any vector for i=1:top runningsum=runningsum+a(i) Matlab sum operation our own version: pseudocode for each column: calculate a running sum down that column. _____________________________________________________________ for each column initializerunning sum for each element down the column. Add its value into the running sum. [n,m]= size (a); for j =1:m %for each column runningsum=0; for i=1:n % down each column end runningsum=runningsum + a(i,j) end mysum(j)=rinningsum; end. 9/25/2012 10:27:00 am find the sum of each column runningsum=0; for i=1:n runningsum=runningsum+a(i,j) end tot(j)= runningsum end zeros command. Creates a vector filled with zeros before the outer loop tot=zeros(1,m);