matlab输出文件中科学计数小数位数,在MATLAB中更改数据科学计数法

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

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