ES2 Review
fprintf(format, format\n, x1, x2); Format: %d = integer, %f =
decimal, %s = stringsControl: \n = new line, \t = tab
>eg: >>fprintf(The velocity is %8.4f m/s\n, 50.617487);
**NOTE %x.y (x = total, y = decimal)The velocity is 50.6175 m/s
(note 8 characters total in velocity & 4 decimal places)
sprintf does the same thing but saves the string to a
variable>eg: >>thread = sprintf(The velocity is %8.4f
m/s\n, 50.617487); >>thread
thread = The velocity is 50.6175 m/s
linspace(x1,x2,n); Generates vector from x1 to x2 with n
values>eg: x = linspace(0,1,6) yields x = 0 0.200 0.400 0.600
0.800 1.000
vectors: ; gives column, : gives row eg: [1;2;3] yields 1
[1:2:3] yields 1 33
transposes vectors, flips orientation, turns rows to columns and
vice versa
Indexing vectors: x(n) or x(n1:dn:n2) Where n is the number in
the vector you want>eg: x = 2 4 6 8, >>x(1) yields 2,
x(1:3) yields 2 4 6, x(1:2:3) yields 2 6
plot(x,y) xlabel(string) ylabel(string) title(Title Plot) grid
on/offfigure creates a new plot, figure(n) accesses that number
plot
function outvar = functionname(argumentlist) eg: function x =
freefall(speed)%function outvar = functionname(argumentlist)
%blahblahblahstatements x = sqrt(speed);outvar = value; MULTIPLE
OUTPUTS: function [x,y] = freefall(speed)
x = sqrt(speed); y = speed * 2;To integrate in script, call
function, eg: z = freefall(2.4) would yield z = 1.549
Operators: == (equal), ~= (not equal), < (less than), >
(greater than), = (great/equal)Logical Operators: ~x (true if x is
false), x & y (true if x and y true), x | y (true if x or y are
true)
Logical variables: format is: isSomething eg: isTallerthan == 1;
isTallerthan is true
if something operator something for i = [1:2:10]statements
statements
else if something operator something endstatements
else while variable operator somethingstatements statements
end end
