1. conversion factor functions
should be simple - not complex
ft_to_m:
fpminsq_to_mpssq:
min_to_s: 60
convert acc = 325 ft/min/min to m/s/s
acc*ft_to_m/min_to_s/min_to_s
= 325*0.3048/60/60 =
acc* fpminsq_to_mpssq
= 325* =
= 325* =
we want to maintain as much accuracy as possible
avoid ROUNDOFF errors
Engr 0012 (04-1) LecNotes 08-01

2. annotating your scripts and functions
function [principal, balance, rate, years] = calcinfo( )
% get user input to financial calculation problem
% needs: nothing
% returns: stuff user entered
% ...
function [principal, balance, rate, years] = calcinfo( )
% get user input to financial calculation problem
% needs: nothing
% returns: principal principal invested, $
% balance balance after years, $
% rate annual interest rate, %
% years number of years invested, years
% ...
Engr 0012 (04-1) LecNotes 08-02

3. display of results is limited will display the text
disp( 'A line of text' )
disp( var_name )
will display value of var_name
but - only under current format
full control of everything - Workshop 5
fprintf('control string', value list)
fprintf('\nInvesting a prinicpal of $%12.2f', principal)
fprintf('\nfor %6.2f years at %6.3f%%', years, rate)
fprintf('\ncreates a balance of $%12.2f', balance)
Engr 0012 (04-1) LecNotes 08-03

4. programming assignment 04
due Wed 24 Sep
class activity 08 : ca08_e12(04-1).pdf
Engr 0012 (04-1) LecNotes 08-04