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+--- Teema: Reaalteaduste seminar täiskasvanutele (/thread-835.html)
RE: Reaalteaduste seminar täiskasvanutele - madis - 25-07-2021
Kirjutasin n-faasilise süsteemi võimsuse võrrandi, võtsin tuletise ajast sõltuvast osast ning leidsin tingimuse mil see tuletis=0
RE: Reaalteaduste seminar täiskasvanutele - madis64 - 25-07-2021
Selle koha peal kukub "täiskasvanu", kes selliste arvutustega iga päev ei tegele, käru pealt maha ja läheb näoraamatut või instagrammi lugema
Kui üritaks oma kunagisi matemaatilisi oskuseid tolmutada - viitsid selle tuletuskäigu siia üle panna?
RE: Reaalteaduste seminar täiskasvanutele - madis - 25-07-2021
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RE: Reaalteaduste seminar täiskasvanutele - madis - 25-07-2021
Nõnnaviisi. See eelmine läbra on foorumile ülejõu, räägin homme adminniga äkki saab korda.
http://www.imatheq.com/corpsite/index.html
Selle abil kirjutasin
RE: Reaalteaduste seminar täiskasvanutele - madis64 - 25-07-2021
Tänan. Väikest õhtulugemist...
See teisenduskäik võiks su esitluse lõpus "lisad" slaididel olla - et kellel huvi on, saab kohe põhjalikumalt süveneda, kes niisama usub, ei pea sellest midagi teadma.
RE: Reaalteaduste seminar täiskasvanutele - madis - 06-08-2021
Uus osa üleval. Tegelikult kasvab see kokku koos osaga 7, nii et 6 lõpp ja "lahtiseks.
Palun kommenteerige ja mõnitage vigade pärast. Imelikul kombel on teemal mis kõige rohkem "ajulähedane" väga raske kirjutada, sihuke tunne et midagi jääb puudu koguaeg...
RE: Reaalteaduste seminar täiskasvanutele - moi - 06-08-2021
See vajaks küll korrigeerimist: kodumajapidamises leiduvad tarbijad on reeglina üpris lineaar-aktiivse iseloomuga.
Kui oleks kõik koormused üpris lineaar-aktiivse iseloomuga, oleks meil võrgus üpris puhas siinus, reaalselt on seal aga väga moonutatud siinus.
See ka: Vahelduvpinge korral ei pruugi vool olla alati „samas taktis“ pingega. Vool ja pinge ongi alati "samas taktis", sama sagedusega aga vahest nihutatud faasiga.
Seetõttu kasutatakse suurtes elektripaigaldistes mõnikord reaktiivenergia kompensaatoreid. - vajaks täpsustamist, võrguettevõtetel on omad normid, kui suurtel tarbijatel peavad olema paigaldatud kompensaatorid, täpseid numbreid ei tea.
RE: Reaalteaduste seminar täiskasvanutele - madis - 06-08-2021
Nõus, korrektsem oleks kirjutada "ka kodutehnikale kehtestatakse järjest rangemaid norme lineaarsuse ja võimsusteguri osas"
Ja "samas taktis" - kuidas paremini sõnastada.. kohe ei taha faasijutu kallale minna. Kas äkki "proportsionaalne" ? St vool on alati mingi prop pingest - see kehtib ju ainult aktiivkoormuse korral.
RE: Reaalteaduste seminar täiskasvanutele - madis - 06-08-2021
Palun tagasisidet ka kompleksarvude osas. See tekitas loengu ohvrite silmis õudust
RE: Reaalteaduste seminar täiskasvanutele - moi - 06-08-2021
Minu arust oli komplaksarvude osas kõik korrektne ja õudust ei tekita, ilmselt see pärast, et olen nendega kokku puutunu.
Tegelikult vist ikka üks asi oli, Euleri valem üldkujul oli : https://et.wikipedia.org/wiki/Euleri_valem