convert large number to smaller
14 次查看(过去 30 天)
显示 更早的评论
I have a large array with numbers like these:
3.2692e+17
However, I want to extraxt the first three numbers, as I am interested in the 32.6 (or 32.7 if rounded). Some numbers are 3.2692e+16 for example, so dividing by e+16 is not working. What is the easiest way to do this?
1 个评论
KALYAN ACHARJYA
2019-5-10
编辑:KALYAN ACHARJYA
2019-5-10
Input=3.2692e+17
Disired Result=32.6
You want convert or extract?
采纳的回答
Star Strider
2019-5-10
One approach:
f = @(x) round(x.*10.^floor(1-log10(abs(x))),2);
producing:
x = [3.2692e+17; 3.2692e+16; 4.2516E+8];
Result = f(x)
Result =
3.27
3.27
4.25
Change the last argument to the round function to change the number of decimal places the function returns.
更多回答(0 个)
另请参阅
类别
在 Help Center 和 File Exchange 中查找有关 Data Type Conversion 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!