1971-09-04 — Page 14

六期星日四月九年一七九一零公布十六國民造力

吉安科示已生報

育教僑華

報日僑華

F五十月七年索学院

WAH KIU YAT PO

第二第張欧第

摩理臣山工業學校

示本港青年對工藝教育之興趣

·其他課程均有大批申請人 顯

尚接受申請

營造工程系

器安裝

CHEEKH-1

一般汁(於

4510DB (-)

·挪篮校至善人向本这一大部份点整入學

入學之人數十分多,當武工程不是理

生工作令人滿意,各染 亦即高門套小學雞|生水产转至。油染较 報記者指出本年度 | 資格以小學森 爲主,賜給愛之可編京工, 夜路。各小

除上述外,倒有日

按工先錢+入運 警

程外,其他各科系申請

工業學校招收本年度秋,有攻营造系鍪者 季新生,工作陌利道行【可於今(四)日,下午合日制(核工),

校國人大 令指關,

〔本隅每選競發一次

科學與人生

·郭新

科漢化」,躞若你告訴他們一件事,很自然的他 代。」他們說的話要求「科學化」,思想萨求「

·許多人都在聽,「我們生活在一個武學的克

甚麼也就理嗎?艾·能哕的話,科體是個送太罗 做開,世上有眞理嗎?如果有的苦5到來能遇 的,一個潑的人,聽了上面話,可能了

I[也許恩弟弟邀去了吧。」有了汪們想些,他 一聽天教預害。可他竟氣上的音港不,

「說,「有阬!」「如異常的話」,他想「就一定 「任何「個人的。這件上使他對生中一個新的健 名纛發說豬桠地上南一個方向。並不來於家中

他

被

推翻了,收台灣並不如他所想除在弟弟的選 是他學得自己的設計對的。他的第一個被 這個我曹棒 於是他做另一個將 。這個假設的進行結果果,餓一定被開話:( 「脚印。從這兩個寫,他姊出一個我設,有贼

,如果我們分析一下起個故事:陳君見到的兼 光很飽案,决定不理她,打案話給驚好去了。

我

活就面

作者介紹,本文作者與共若正中

及明白科思與化關係。製共內容綱多本1.

~(3) MAT

三种恐的低

一般科學的哲學

(1)STK...

#304(L).

〔]】生命的定筊

C 生命的起源。

H宇宙是全民創造的?

〔一〕宇宙的箭去

D、人工做榨來的智戀

意作者淡值

來!

粉

F

| 定九月九日髒,又103學

來成 宫本 送工葉器

<R • (#).

Example:

EXIF 中學同學暑期進修專欄選進英文書院主

ema inuer

20 divided By. 16 10 With Fete inter Of

110

新數學進修 (七)

學畢業同學·

暑期進修專欄

remainder

BRUSELOR YOUR MODERN

ICS (7)

L

ber systems

Number systems can

(上):addotoveaid

(2) positional

Decimal

remainder

0

Step

jdinued

by

1.8.0 with.

remainder

慧出版社生育

新數學 (十四)

lementary Modern Hathematics.

esson

the additive

#nich means £1

number system

68 is expressed as LXVIII

+ INI

The decimal

a comoi nasion of che additive

and positional types 12 and 21, for example, are Having the same two symbols bue; have i different values. The in 12 13 actually ten- ones while the I 1 21 1s only one-oney on 1. The:weight or velue of the same symbol te determined by its position It is also Fadditive because 121= 10+ 2: There are some:

other examples for the combination of additive.

Binary ro-decimal conversion

7 The remainders

'takenince

order

(/101001)we

binary equivos; ent of 41:

Both of these systems are the combtrafion the additive and positional types, each of which can be re-assembled into its constit having its own weight. The equivalent weight in the other system can be eastly Visualized if tabulated as follows!.

Binary system

weights of A constituents.

Numbers

he Closure Property

An operatio

19 said to be closed

1t.does involved

the form of numbers

The closure. roperty of additiju

Taking addition for example, Addition

a process of combining two numbers to

35.

Base 10

expressed in.

Base 2. (Bina

Base

Base

1024

1.20

100011

-1000+100+0+

Fences: the dec

binary number 110am ea

16:8:4

onversion method: 1

tep 1 Write the binary number

2 Directly under each bir

write its positional weight as 1,2,4,8,16, 32 sew. from right to left 3 Cross out the decima?

equivalent under the bis

The sum of two positive nuumbers can be expres ed by another. unique positive number That is to say that after the operation of

addition, positive numbers will get back

tive numbore.

Inus we say that the positive

are closed under the process of addition.

is the positive number system closed unde

uraotion

The decimal number system has been ram 1112r man for centuries undoubtedly we are reluctant to accept a different number system The evolution of the present ten basic symbols : system is based on the fact that man has ten. fingers to count Sayy in another planets m { "there" exists another creature with only wo

fingers. What kind of number system woaid you suggest? A two-basic-symbol system of cour It consists of only two symbols, I and There are only two symbols in this pinary system. For one, we use the symbol 1: for two we use the combination of 1 and 10 as, ∙10'. * It reads as one-zero, but not 'ten Its: weight or value is the same as einhe: decimal system a The following is a tablef

llustrating the relationships of the quantitie es. berveen decimal numbers and binary numbers:

Binary add

decimal equivalent

the answer.

Addition and subtraction of binary numbers are simple... It is exactly equivalent to the same operacions as in decimal numbers. Howevery we need only to operate two bias 0 and 1 addition on the binary system.

Example:

110011

101111

We see here, that -2 is nov e positive

integer. does not belong to the system of positive integere.

Therefore, subtraction is not closed

under subtraction.

Closure Prod

of multiplication

1100010 which 15.

equivalent

The operation of multiplicati

• x 14 = ?

closed in the system

Quantities

None

Decimal System Binary. System.

Binary Subtraction

Take any two positive them up,

Tection in binary sys

•Only Four combinations exi

equally, simp the rem

10

11

Band: bor

100

10.1

110

1·11

1000.

1001

These two numbers '1' and "0" in the binary System is known as bits which is a contraction. of the words "binary digits"

The binary system is used because the circuits. and:components used in compucers, and concro systems have just two conditions, "open" and. "close" of the circuit, which are used ro represent the two digits of the binary system

Decimals-to-bimary Conversion

Double-dabbie method -It is a repetition of division of a number by 2 with the remainder of each stage taken out as the answer

Binary Multiplication

Multiplication binary numbers are much easier. Then that in decimal numbers, The binary. multblication table is a short one as tha's

xo X-

。

In abltiplying a binary number oy a binary number, no carrying over is ever required The carrying over occurs only in the bizary. eddition afterwards

Examples: 11010 x 101

multiplicand - 11010

xo

110 10

11010 10000010

20000000 is the ansWEA

cits.decimal: equival

as to be wo the reader.

positive integers., mber and multiply

Since: multiplication can be regarded. as repeated multiplication or taken astadding for 14 times. It will be easily understood that the answer must be positive, that is to peay that the system of vositive numbers. ds

also closed under multiplication,

Clsure property of division

Taking any positive

and divide

then

xe

Integer is 0.2 is not an integer. whole number The oxe: from the above.

le we can say that division is not closed in the positive integer syatem