MATLAB Function Reference
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Control the output display format

Syntax

MATLAB performs all computations in double precision.The format command described below switches among different display formats.

Description

Command
Result
Example
format
Default. Same as short.
format short
5 digit scaled fixed point
3.1416
format long
15 digit scaled fixed point
3.14159265358979
format short e
5 digit floating-point
3.1416e+00
format long e
15 digit floating-point
3.141592653589793e+00
format short g
Best of 5 digit fixed or floating
3.1416
format long g
Best of 15 digit fixed or floating
3.14159265358979
format hex
Hexadecimal
400921fb54442d18
format bank
Fixed dollars and cents
3.14
format rat
Ratio of small integers
355/113
format +
+,-, blank
+
format compact
Suppresses excess line feeds.
format loose
Add line feeds.

Algorithms

The command format + displays +, -, and blank characters for positive, negative, and zero elements. format hex displays the hexadecimal representation of a binary double-precision number. format rat uses a continued fraction algorithm to approximate floating-point values by ratios of small integers. See rat.m for the complete code.

See Also

fprintf, num2str, rat, sprintf, spy



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