An approximator is something which approximates something else.
Standard Hindi and most other vernaculars do not differentiate between /v/ (voiced labiodental fricative) and /w/ (voiced labiovelar approximant). Instead, most Indians use a frictionless labio-dental approximant for words with either sound. So wine is pronounced like vine.
Yes, the letter "W" is considered a soft sound. It is a voiced labiodental approximant, pronounced by bringing the lips close together without contacting them.
['ɟʝeβateu̯n a'βɾiɣo] using the International Phonetic Alphabet, used by Spanish phoneticians.*Note:The [ɟʝ] sound is like that in English judge, but softer. Phonetically it's a "voiced palato-alveolar affricate".The sound [β] is like a [b] sound, but with the lips slightly opened. Phonetically it's a " bilabial approximant".The [ɾ] sound is like that in kitten in many US English variaties. Phoneteically it's an "alveolar tap".The [ɣ] sound is pronounced by placing the back part of the tongue near the back part of the hard palate without pressing the air flow. Phonetically it's a "velar approximant".YEH-ba-teh oon ah-BREE-goh
In Tamil, the word "zha" is pronounced as a retroflex fricative sound similar to the English "r" sound. In Malayalam, it is also pronounced as a retroflex fricative, but it can vary depending on the dialect, and sometimes it may be pronounced as a retroflex liquid or a retroflex flap.
['meðja'noʧe], using the International Phonetic Alphabet. Recommended in Spanish pronunciation manuals.*Note:The [ð] sound is like that in English this. Phonetically it's an "interdental approximant".The [ʧ] sound is like that in English church. Phonetically it's a "voiceless palato-alveolar affricate"."meh-dee-ah-NOH-cheh".It's the Spanish word for 'midnight'
puedo ['pweðo], using the IPA, which is recommended in Spanish pronunciation manuals.*Note:The sound [ð] is pronounced like that in English this. Phonetically it's an "interdental approximant".The symbol ['] stands for the stressed syllable."PWEH-doh".It means 'I can'
It's εγκέφαλος. Modern transliteration (changing from one script to another) is enkéfalos. Though for the traditional way you might have to ask someone else. For an approximant pronunciation it's eng-GEH-fah-lohs.
It is a rational number - a ratio of two integers - that is sufficiently close to an irrational number so as to be used instead. Calculators and computers- unless using double precision - usually store irrational numbers to 16 digits. In schools, for example, pi is often approximated by 22/7. Later on 3.142 ( = 3142/1000) or 3.14159 ( = 314159/100000) may be used. Yet another ratio, which is accurate to 7 digits, but is not used much, is 355/113.
AFI [du.'ɣan], [-ðu.'ɣan] [d] after [l], [n] or brief or long pause (silence) [|], []. Similar to [d] in "candy" [ð] In sentences, between vowels or any consonant different from [n], [l] or pause. Similar to [ð] in "this" [u] as in "shoe" but shorter [ɣ] there is no English equivalent sound for this Spanish approximant. It is articulated similar to a [g] without stopping or constraining the air flow. [a] as in Italian "amare", to love [n] as in none ['] main stressed syllable [.] syllable break
In Spanish, the name "Logan" would be pronounced as "LOH-gahn." The "o" is pronounced as a short "o" sound, similar to the "o" in "hot." The "g" is pronounced as a hard "g" sound, like the "g" in "goat." The emphasis is placed on the first syllable, "LOH."
I presume that you mean how to pronounce the letter R in English. How and when you pronounce the letter R depends on whether you speak or want to speak British or American English. Generally speaking the letter R is always pronounced in American English and is often not pronounced in British English. Here is a link to tell exactly how and when to pronounce the letter R. The article explains the pronunciation if the letter R in a very clear way, there are some multiple choice questions with answers and explanations. http://www.squidoo.com/quiz-when-to-pronounce-the-letter-r-in-british-english
The letter "W" with a line underneath it is a symbol used in mathematics to represent a vector. In physics and engineering, vectors are quantities that have both magnitude and direction. The line underneath the "W" indicates that it is a vector quantity, as opposed to a scalar quantity which does not have direction.