Notes, abstracts, papers, exams and problems of Electronics

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Vocabulary for Urban Living: Neighbors, Parking, and Housing

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Written at on English with a size of 3.34 KB.

Vocabulary for Urban Living

Neighbour: person living near you

Zip code: code of letters and digits added to a postal address

Post code: postal number for the area of the city where you live in

Parking lot: place where vehicles can be parked in

Car park: place where vehicles can be parked in

Elevator: small room that carries people/goods up and down a building

Lift: device that carries people/goods up and down inside buildings

Make a name for yourself: become famous/respected by a lot of people

Make a start on/get going: begin something

Get the picture: understand what you are told

Have something against: object to something

To do your utmost: do your best

Have no option (but to do something): not have the possibility to do something else

Make a list of:... Continue reading "Vocabulary for Urban Living: Neighbors, Parking, and Housing" »

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Verb Tenses in English: Present, Past, Future

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Written at on English with a size of 2.66 KB.

Present simple

I go/she goes, I don't go/she doesn't go, Do I go/Does she go?
- Regular habit or routine, a true scientific fact (always usually at 1 o'clock at night...)

Present continuous

I am asking, I'm not asking, Am I asking?
- Action happening now (now at the moment right now), temporary action (this year at present today these days...), plan for the near future (this evening tonight tomorrow...)

Past simple

I worked, I didn't work, Did I work?
- Completed action in the past, series of completed actions in the past (yesterday last week when then)

Past continuous

I was running/you were running, I wasn't running/you weren't running, Was I running?/Were you running?
- Action in progress at a specific time in the past (at 4 o'clock last night...),... Continue reading "Verb Tenses in English: Present, Past, Future" »

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Public synchronized int incContador (int val)

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Written at on English with a size of 3.76 KB.

if(padres%2==1){
            padres = padres -1;
            arrCruce[ultimo][2] = "0";
            arrCruce[ultimo][3] = arrCruce[ultimo][0];
        }
        String c[][] = new String[padres][3];
        int f=0;
        for(vc=0; vc<individuos; vc++){
            if(Integer.ParseInt(arrCruce[vc][2])>0){
                c[f][0]=String.ValueOf(vc);
                c[f][1]=arrCruce[vc][0];
                f++;
            }
        }
        vc=0;
        int punto = (int)(Math.Random()*genes);
        System.Out.print("\nCRUCE\n");
        System.Out.Print("EL PUNTO DE CRUCE ES: " + punto + "\n");
        while(vc<padres){
            c[vc][2] = c[vc]
... Continue reading "Public synchronized int incContador (int val)" »
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english

Classified in Electronics

Written at on English with a size of 2.15 KB.

P.S: every day,sometimes,always,never/I don't-doesn't

P.C:now,at the moment,look!/inf+isn't+ing(sta pssnt en el momnt q parles)
P.P.S:just,yet,already,since,for/have-has+3ª(a comnçat prsent pro t continu)
P.P.C:all day,since,for/have-has+been+inf+ing(accio passat acabada)
p.S:last,ago,yesterday/didn't+inf+ed-2ª
p.C:while/was/were+inf+ing(accio q passa a meitat d'una altra)
p.P.S:already,just,never/had+3ª-ed(1ªacc p.Simple i 2ªacc p.Perfect)
p.P.C:how long,since,for/had+been+inf+ing(estona abans d q pases algo)

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Simple past grammar

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The simple present tense

is One of several forms of present tense in English. It is used to describe habits, unchanging situations, general Truths, and fixed arrangements.

1st Person normal, do, don’t.

3rd Add -s question does, doesn’t,

For habits
He drinks tea at Breakfast.
She only eats fish.

Present perfect

Affirmative: 1st have walked, 3rd Has walked

Negative: 1st haven’t walked, 3rd Hasn’t walked

Interrogative 1st have I walked? 3rd Has she walked?

Present continuous

1st I/you am/are going, i/you am not/ aren’t Going, am I going? Are you going?

3rd he is going, he isn’t going, is he Going?

Present perfect continuous: Has been + ing

1st I have been, I haven’t been, have I been living?

3rdShe has been, she hasn't Been running, has

... Continue reading "Simple past grammar" »
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Short redaction past simple past continuous and past perfect simple

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Written at on English with a size of 1.25 KB.

Past Simple (yo trabaje)

I worked-I did not work- Did I Work?

Pasado continuo (yo estaba trabajando)

I was working/You were working- I was not working -Was I working?

Presente perfecto (yo he trabajado)

I have worked/He has worked- I have not worked- Have I Worked?

Presente perfecto continuo (yo he estado trabajando)

I have been working/He has been working

Pasado perfecto(yo había trabajado)

I had worked- I had not worked- Had i worked?

Pasado perfecto continuo (yo había estado trabajando)

I had been workin- I had not been workin- Had I been Working?

Futuro continuo (yo estaré trabajando)

I will be working- Iwill not be working- Will i be working?

Futuro perfecto (yo habré estado trabajando)

I will have worked- Iwill not have worked- Will I have worked?... Continue reading "Short redaction past simple past continuous and past perfect simple" »

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English Verb Tenses: Active and Passive Voice

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ACTIVA

PASIVA

PRESENTE SIMPLE

The woman takes the bus

Am/is/are taken

PRESENTE CONTINUO

Is taking

Is being taken

PASADO SIMPLE

Took / -ed / 2ª columna

Was / Were taken

PASADO CONTINUO

Was/Were taking

Was / Were being taken

PRESENTE PERFECTO SIMPLE

Have / Has taken

Have / Has been taken

PASADO PERFECTO

Had taken

Had been taken

WILL + INF

Will take

Will be taken

BE GOING TO + INF

Am/Is/Are going to take

Am/Is/Are going to be taken

WOULD + INF

Would take

Would be taken

MODALS

Must take

Must be taken

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Verb Tenses and Conditionals in English Grammar

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Written at on English with a size of 3.85 KB.

Present simple: verb normal and only add -es/-s in 3rd person singular. In negative, add don't or doesn't.

Present continuous: use am/are/is and the verb ending in -ing.
Past simple: put the verb with -ed at the end or the second column if irregular. In negative, use wasn't/weren't/didn't, the latter with the infinitive.
Past continuous: use was/were and the verb ending in -ing.
Will: use with verb in infinitive and if negative, use won't.
Be going to: conjugate be (am/are/is) and the verb in infinitive.
Present perfect: use have/has and the 3rd column to negate haven't/hasn't. Expressions: just/yet/already/never/ever/how long/this month/this week/today/for/since.
Used to: affirmative (subject+used to+infinitive)
negative (subject+didn't use to+infinitive)
... Continue reading "Verb Tenses and Conditionals in English Grammar" »
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aaaaa

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Written at on English with a size of 1.58 KB.

Propiedades

1. Si un det. Tiene 1 fila o 1 columna de zeros; el det. Es zero.

   |0 0|=0     |0 -3|=0
   |1 8|          |0  1|

2. El det de |A|=|At|.

     |1   3|=4+6=10
|-2 4|

3. Si cambio una fila por otra fila o una columna por otra columna el det. Cambia de signo.

|3   4|=-6-4=-10                      |-2  1|=-6-4=-10
     |1 -2|                                        |4   3|

4. Si dos filas o dos columnas son proporcionales; el det. Vale zero.

|A|=|1 -3|=-9+9=0
       |3 -9|

5.

      |1    2+5|= |1   2| + |1  5|=-1-6+5-15=-17
      |3    1+5|    |3 -1|     |3  5|

6.

   |AxB| = |A|x|B|

7. La k la puedo multiplicar por toda una fila o por toda una columna lo mismo para sacar factor
... Continue reading "aaaaa" »
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Calculus and Functions: Derivatives, Limits, and Continuity

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Written at on English with a size of 3.96 KB.

Derivades

1)-Taxa de variació mitjana TVM f(x)= f(b)-f(a) / b-a
f(x)= x2-5 en (1,4) f(1)= 12-5=-4 f(4)= 42-5=11
TVM= 11+4 / 4-1= 5


2)-Taxa de variació instantania TVI f(x)= limx=af(x)-f(a) / x-a
f(x)=3x2-3x en x=1 f(1)= 3·1-3·1=0
TVI=3x2-3x / x-1= limx=1 3x2-3x= limx=1 3x2-3x / x-1 = 0/0 indeter.
3x=3·1=3


3)-Equacio recta tangent f'(a)=limh=0 f (a+h)-f(a) / h y=f(a)+f'(a) ·(x-a)
f(x)=x2-5x+2 en x=1(a) f(1)=12-5·1+2= -2
f'(1)= limh=0 f (1+h) - f (-2)= limh=0 |(1+h)2-5· (1+h)+2| (-2) =
limh=0 |(12+h2+2·1·h) -5 -5h+2-2| / h = limh=0 1+h2+2h-5h-5 / h=
limh=0 h2+2h-5h-5+1 / h = limh=0 h2-3h / h = 0/0 indeter.
h (h-3) / h = h-3 y= -2-3(x-1) y=-2-3x+3 y=-3x+1


Limits

1) x2/ x= +8 x/x=1 numero / 8 =0
-si num es més
... Continue reading "Calculus and Functions: Derivatives, Limits, and Continuity" »
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