i need to convert a string to a num without using the "str2num" function but in the final answer i have some undesired spaces. how can i remove them?

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Zaza
Zaza 2012-11-24
st = '23487';
x = double(st);
y = x-48;
y = 2 3 4 8 7
i want this in "normal" format of "23487"...

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采纳的回答

Azzi Abdelmalek
Azzi Abdelmalek 2012-11-24
编辑：Azzi Abdelmalek 2012-11-24
st = '14523'
x = double(st)
y = sum((x-48).*10.^(numel(st)-1:-1:0))

更多回答（1 个）

Andrei Bobrov
Andrei Bobrov 2012-11-24
编辑：Andrei Bobrov 2012-11-26
out = (st-'0')*10.^(numel(st)-1:-1:0)';
or from Cody
out = polyval(st-'0',10);

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