Matlab中的幽默

Matlab是一个科学计算的软件。我们数学系的小学期会专门学习这个软件。数学建模课需要用这个软件。数值计算也有专门的上机课操练它。在我心目中，它一直是一个一本正经的严肃的软件。直到今天。

NO.1 报错信息

Matlab中有一个函数reshape.可以把一个矩阵重新排列。例如，下列代码可以把4*4的方阵变成2*8的矩阵。

A=magic(4);
reshape(A,[2,8])

结果是：

ans =

    16     9     2     7     3     6    13    12
     5     4    11    14    10    15     8     1

明显，reshape的第二个参数你不能输入负数。如果在Matlab 2010a中输入负数：

A=magic(4);
reshape(A,[-2,-8])

报错：

??? Error using ==> reshape

Size vector elements should be nonnegative.

到这里，没有什么好玩的。但是，在Matlab 6.5.1中，这个错误信息是很有意思的。（这周四去学校机房上机的时候，我要试验一下。）下面的内容为Walking Randomly中的测试：

reshape(A,[-2,-8])

报错：

??? Error using ==> reshape

Don't do this again!.

哼。你不让我再来，我偏要来：

reshape(A,[-2,-8])

报错：

??? Error using ==> reshape

Cleve says you should be doing something more useful.

我偏偏就没事做。

reshape(A,[-2,-8])

报错：

??? Error using ==> reshape

Seriously, size arguments cannot be negative.

上面这个小幽默。在Matlab 2010a中已经不复存在了。下面说说两个Matlab 2010a还存在的小幽默

NO.2 spy

输入

spy

啦啦啦。。。会出现什么呢？点击查看

NO.3 why

输入

why

到底会出来什么呢？这个要看你RP的！以下是一下我得到的回答：

• To fool the tall good and smart system manager.
• The rich rich and tall and good system manager suggested it.
• He wanted it that way.
• The programmer suggested it.
• Barney suggested it.
• To please a very terrified and smart and tall engineer.
• The tall system manager obeyed some engineer.
• To satisfy some programmer.
• Damian wanted it that way.
• Can you rephrase that?
• Because Damian wanted it that way.
• How should I know?
• Because they asked the terrified and smart and tall and tall programmer.
• To fool a young tall hamster（仓鼠）.
• For the love of a bald and terrified mathematician.
• It's your karma.
• Some terrified and rich system manager knew it was a good idea.
• Don't you have something better to do?
• …………………………………………

Reference:

Walking Randomly的Has MATLAB lost its sense of humour?

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