Playing around with fx-991MS

I have a Math exam coming soon. Thought I should share a few tricks I know with the calculator most of use. First one you probably have encountered: solving a function (say f(x)) when the values of variables are given. I mostly used this while working on problems of Numerical Methods last sem. It is useful for monotonous calculations where you have one function that you don’t constantly want to re-type. Here’s how you go about doing it:

Do you see the A, B, C, D, E, F, X and Y in red? Those are your variables. Surely, these many will suffice in your equation. Assuming f(x, y) = x^2 + y^2
You press ALPHA + ‘)’ [or X] (or any other variable of your choice), then the ‘squaring’ button (x^2) and finally you do the same thing with Y. After that is done, your equation is ready! Press CALC. It prompts you for the values of X and Y respectively. Enter them and your calculator will have the answer for you.

The second trick is ‘Solving for X’. It is similar to the previous method except this is an equation not an expression. So, don’t miss out the ‘=’ in your equation (which can be inserted using ALPHA + CALC [or =]). Assume the equation to be 3X = 39
Type the equation now press SHIFT + CALC [SOLVE] twice. Yes, twice. If you press it once, it will prompt you for the value of X. When you press it twice it solves the equation. It may take time depending on the degree of the equation.

Anime review: Shigatsu wa Kimi no Uso

The story begins with Kousei Arima, a pianist who has pitch perfect playing skills, playing in a music competition. Suddenly, he is unable to hear the notes of the piano that he is playing. Frustrated and nervous he goes off tune and eventually stops. After that he never plays the piano until Kaori Miyazono enters his life. She rekindles his interest in playing the piano and enjoying music.

Shigatsu wa kimi no Uso shines as an evergreen anime. Few titles have earned that badge. It can even make a person who has sealed up their heart love once again, appreciate the melodious music and at times make your eyes moist. I loved this anime so very much!

Shigatsu comprises of rare genres such as music, slice of life, drama and romance. The pacing feels great, there is always a competition around the corner which they passionately prepare for. Music is given a lot of importance and it does not feel shadowed by drama or romance.

Everything about this anime has been crafted masterfully. The characters have not been spared either. They are good-natured, selfless and have a good spirit of friendship.

It is the story that steals the largest slice of the cake. The story is what won most of my heart (Kaori won the rest!). True fact, that there is a little bit of fore-shadowing, but you will still ensue watching it because it is too beautiful to miss.

Reviewer’s personal note:
You know how much I loved it by now. I began taking a keen interest in music, violins especially after I finished watching it. Being left-handed it is unconventional to play the violin left-handed (bow in the left hand). I want to start learning to play one. One of my favourite music genres is Jazz <3