Introduction to MATLAB - Numerical Methods in Engineering with MATLAB - page 21

% w

d f Floating point notation
% w . d e Exponential notation
\

.

Newlinecharacter n

where w is the width of the field and d is the number of digits after the decimal point.
Line break isforcedbythe newlinecharacter. The following example prints a formatted
table of sin x vs. x at intervals of 0

. 2:

>>x=0:0.2:1;
>>fori=1:length(x)
fprintf('%4.1f %11.6f\n',x(i),sin(x(i)))

end
0.0 0.000000

0.2 0.198669

0.4 0.389418

0.6 0.564642

0.8 0.717356

1.0 0.841471

1.7 Array Manipulation

Creating Arrays

Welearnedbeforethat anarray canbecreatedbytyping its elements betweenbrackets:

>>x=[00.250.50.751]
x=

0 0.2500 0.5000 0.7500 1.0000

Colon Operator
Arrays with equally spaced elements can also beconstructedwith the colon operator.

x = first elem : increment : last elem

For example,

>>x=0:0.25:1
x=

0 0.2500 0.5000 0.7500 1.0000