Scilab 5.3.0
- Scilab Online Help
- Strings
- ascii
- blanks
- code2str
- convstr
- emptystr
- eval
- evstr
- grep
- isalphanum
- isascii
- isdigit
- isletter
- isnum
- justify
- length
- part
- regexp
- sci2exp
- str2code
- strcat
- strchr
- strcmp
- strcmpi
- strcspn
- strindex
- string
- strings
- stripblanks
- strncpy
- strrchr
- strrev
- strsplit
- strspn
- strstr
- strsubst
- strtod
- strtok
- tokenpos
- tokens
- tree2code
Please note that the recommended version of Scilab is 2025.0.0. This page might be outdated.
See the recommended documentation of this function
isnum
文字列が数字であるかどうかを調べる
呼び出し手順
res = isnum(str)
パラメータ
- str
文字列または文字列の行列.
- res
論理値の行列.
説明
res = isnum(str)は,
strが数値の場合に %Tを返します.
例
isnum(['1' , .. '-1.23' , .. '+1e+23', .. '1d+23' , .. '%pi'])
作者
- P.M
| << isletter | Strings | justify >> |