数据显示格式可以由命令：vpa，format等改变另外还有fprintf格式与C基本一致，format rational最接近的有理数，format long 14位小数，format恢复。vap(c,6)设置c为6位小数。fprintf（‘%20.6f’，c）。
至于你的问题，你可以使用vap（最好）也可以使用format long eng，如果问题允许你也可以事先处理数据使之再适合范围。推荐你使用help，其中有详细介绍。
format命令参数：
short
Scaled fixed point format, with 4 digits after the decimal point. For example, 3.1416.
long
Scaled fixed point format with 14 to 15 digits after the decimal point for double; and 7 digits after the decimal point for single. For example, 3.141592653589793.
short e
Floating point format, with 4 digits after the decimal point. For example, 3.1416e+000.
long e
Floating point format, with 14 to 15 digits after the decimal point for double; and 7 digits after the decimal point for single. For example, 3.141592653589793e+000.
short g
Best of fixed or floating point, with 4 digits after the decimal point. For example, 3.1416.
long g
Best of fixed or floating point, with 14 to 15 digits after the decimal point for double; and 7 digits after the decimal point for single. For example, 3.14159265358979.
short eng
matlab中fprintf是什么意思Engineering format that has 4 digits after the decimal point, and a power that is a multiple of three. For example, 3.1416e+000.
long eng
Engineering format that has exactly 16 significant digits and a power that is a multiple of three. For example, 3.14159265358979e+000.

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