scalar computer是什么意思

谢桥桥2022-10-04 11:39:541条回答

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weicwei 共回答了21个问题 | 采纳率85.7%
scalar computer
[英][ˈskeilə kəmˈpju:tə]
[美][ˈskelɚ kəmˈpjutɚ]
标量电脑;
1年前

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use of uninitialized value $line in scalar chomp at 2.3.pl l
use of uninitialized value $line in scalar chomp at 2.3.pl line 10,是哪里出了错?
use strict;
use warnings;
open IN_FILE,"
股骨虫1年前1
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"use of uninitialized value $line" 说你在第10行使用了未定义的值$line ;
09.$line = ; # while循环到最后一行后,没有退出,还要再读入
10.chomp($line); #读入的内容为空,即$line未定义
改成下面的方式:
while(1){
$line = ;
if(not defined($line)){
x05last;
}
chomp($line);
print "$line ";
$a=$a+$line;
$number++;
}
所以先进行判断,$line是否有值,无则退出
尽管不知道你在考什么,但是大概明白了这是在求一个txt文件中一列数字的平均数
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.(ii) The set of all 2 × 2 matrices whose trace is equal to 1.
(iii) The set of all polynomials in P2 of the form a0 + a1 x + a2 x2 where the product a0 a1 a2 ≤ 0.
(A) (i) only (B) (iii) only (C) (i) and (ii) only (D) (i) and (iii) only (E) none of them (F) (ii) and (iii) only (G) all of them (H) (ii) only
Which of the following sets are closed under addition?
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(iii) The set of all polynomials in P2 of the form a0 + a1 x + a2 x2 where a0 = a2.
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选C 因为这个矩阵式放行矩阵 所以选c
Then I called ExecuteScalar,which is the meat of the code.
Then I called ExecuteScalar,which is the meat of the code.
调用executescalar,这个返回一个结果,
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名词meat:
同义词:kernel
kernel:[ 'kə:nl ]
n.核心,中心,精髓
[计算机] 核心
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有些物理量,既要由数值大?包括有关的单位),又要由方向才能完全确定.这些量之间的运算并不遵循一般的代数法则,而遵循特殊的运算法则.这样的量叫做物理矢量.
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与它相对应的是矢量,矢量是指既有大小又有方向的物理量,如力、位移、速度、
冲量、动量等等.