double

整数から倍精度表現に変換

呼び出し手順

y=double(X)
y=int16(X)
y=int32(X)
y=uint8(X)
y=uint16(X)
y=uint32(X)

パラメータParameters

X: 浮動小数点数または整数の行列
y: 浮動小数点数の行列

説明

converts data stored using one, two or four bytes integers into double precision floating point representation. エントリXがすでに倍精度 entries are already double precision floats, nothing is done.

例

x=int8([0 12 140])
double(x)

参照

<< ceil

Floating point

fix >>

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Last updated:
Wed Jan 26 16:25:03 CET 2011