I’m a qualified linguist. I’ve got formal expertise in linguistics, specifically I’ve got a first class BA degree in the English language and linguistics, and an MA degree in psychology and linguistics with merit, both from the University of York, UK. My background is in linguistics, but I’m fond of mathematics. While studying linguistics at university, I realised that mathematics is actually my vocation.
As a RU-vidr, I create maths explainers as well as educational videos on computer programming, the English language, and linguistics.
SOH CAH TOA is a mnemonic technique which helps one remember the definitions of the three basic trigonometric ratios, namely sine, cosine and tangent. In 1609, Galileo Galilei invented and built the first telescope.
Lastly, a disclaimer: the videos on this RU-vid channel are intended to serve as proofs of concept.
At 00:51, the congruence marks on the latus rectum and the blue vertical line segment should be double. I’ve already used single congruence marks for the focal length (highlighted in deep sky blue) at 00:36. This is why, at 00:51, the congruence marks on the latus rectum and the blue vertical line segment should be double. At 00:36, the congruence marks on the violet line segments should also be double.
this has a beautiful look . and look ! our π in horizontal direction seems rather equal to our 1, the unity, in vertical direction . well don't you think that this could disturb the imagination of real ratios and slopes . (d/dx) sin x shouldn't it come out upon ±1 at x = 0, π, 2π, 3π, ..
The phase shift of a sine wave is how far the sine wave is shifted to the left or to the right from its original position along the x-axis. The sine wave in my animation is out of its original position for most of the time. This is because it keeps sliding to the right as it‘s being generated. I had to use this sliding technique because the horizontal space on the screen is limited. To keep the sine wave in its original position along the x-axis while creating many cycles, I would need a very long x-axis. In the video below, the sine wave is always in its original position, but I could only create two cycles due to the limited horizontal space on the screen: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-j8A5JWP-CeY.html
@Sohcahtoa1609 have you tried the electronic voice over. You can type it in your native language and then it translates to English. It wouldn't be perfect but it would be effective.
In English, many adverbs are formed by adding the suffix "-ly" to adjectives. This suffix transforms the adjective into an adverb, e.g. we add the suffix "-ly" to the adjective "complete" and we get the adverb "completely". However, not all adverbs end in "-ly," as there are some adverbs that do not follow this pattern, e.g. "so", "very", "soon", "altogether", "now" and "ahead".
English does not have the category of "Transitive / Intransitive". You should take this video down. Better to be silent and thought a fool than to open your mouth and remove all doubt.
Can you expand on that? It's common knowledge that the English language has: 1) intransitive verbs, which don't require a direct object, e.g. "fly" as in "Birds fly." 2) (mono)transitive verbs, which require a direct object, e.g. "see" as in "Last night, we saw a comet.", where "a comet" is the direct object of "saw" 3) ditransitive verbs, which require two objects, namely an indirect object and a direct object, e.g. "give" as in "I gave Catherine a rose yesterday.", where "Catherine" is the indirect object and "a rose" is the direct object of "gave"
Or because its a 0/0 situation you can take the derivatives of the denominator and numerator, so you get 2x/1 as x approaches -2, which gives you -4. Either way is good though, they both lead to the same answer and are valid methods, although 0/0 is more commonly useful.
I'll be posting videos about l'Hôpital's rule too. In this video, I wanted the emphasise the use of algebraic identities, such as the difference of two squares, to factorise expressions and evaluate a limit that initially yields an indeterminate result such as 0/0 or ∞/∞.
Yes, I know. I'll be posting videos about l'Hôpital's rule too. In this video, I wanted the emphasise the use of algebraic identities, such as the difference of two squares, to factorise expressions and evaluate a limit that initially yields an indeterminate result such as 0/0 or ∞/∞.
My pleasure. If you also need the definitions of a hyperbola's elements, you can check out this video: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-0aktdbE7gFk.html.
Not at the moment I’m afraid. Now, I use Python Turtle to create 2D maths animations. Python Turtle is quite basic, but I intend in the future to learn more advanced Python modules and libraries such as PyGame, VPython (which is good for 3D animations), and Manim. 3D animations are on my agenda but, at the moment, I focus on 2D maths animations and Python Turtle. Now, I’m working on animations that address the special lines in a triangle, namely the altitudes, the medians, the angle bisectors, and the perpendicular bisectors. In the near future, I will start releasing them.
Good point… It depends on which side you look at the car from. If you look from the left side of the car when the car runs forward, the wheels rotate anticlockwise. But if you look from the right side of the car when the car runs forward, the wheels rotate clockwise. I’m originally from Eastern Europe where the driver’s seat is on the left side of the car, but in the UK (where I currently live), the driver’s seat is on the right side of the car. One’s cultural background influences the way one sees things.
chewing my pencil as a schoolboy and going schizophrenic with incomprehension while the principles are so straightforward and easily comprehended if presented properly.
