intmin

tmin 'in tmin

Matlab中intmin簡介
函式功能： 返回指定整數類型所能表示的最小值。
調用格式：
v = intmin
返回matlab中32位正整數所能表示的最小值。
v = intmin('ClassName')
返回指定的整數類型所能表示的最小值。'classname'可以是：
'int8'、'int16'、'int32'、'int64'、'uint8'、'uint16'、'uint32'、'uint64'。
相關函式： intmax
程式示例
close all; clear; clc;
type_cell{1} = 'int';
type_cell{2} = 'uint';
bits = [8, 16, 32, 64];
for m = 1:2
for k = 1:4
type_str = strcat(type_cell{m}, num2str(bits(k)));
fprintf('The smallest number ''%s'' can represent is %s\n', ...
type_str, num2str(intmin(type_str)));
end
end
運行結果
The smallest number 'int8' can represent is -128
The smallest number 'int16' can represent is -32768
The smallest number 'int32' can represent is -2147483648
The smallest number 'int64' can represent is -9223372036854775800
The smallest number 'uint8' can represent is 0
The smallest number 'uint16' can represent is 0
The smallest number 'uint32' can represent is 0
The smallest number 'uint64' can represent is 0
上面這個程式列印出了matlab中各種整數類型所能表示的最小整數。