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Well where is it then? I can't find it

Come on Alan, ¶   that is not  pi  that is a pilcrow!    I know because I just looked it up ;)

Punctuation mark[edit]

¶ (English name pilcrow or paragraph mark)

Wikipedia has an article on:

¶

Beginning of a section of text.

Beginning of a paragraph.

589.2

Thanks Heureka,

Heureka has divided BY 1000

dividing  TO 1000, as the question asks, makes no sense  :/

How can I divide 10^9.7 to 1000 and have the result as 10^x format?

\(\begin{array}{|rcll|} \hline \dfrac{10^{9.7}}{1000} &=& 10^x \\\\ \dfrac{10^{9.7}}{10^3} &=& 10^x \\\\ 10^{9.7-3} &=& 10^x \\\\ 10^{6.7} &=& 10^x \\\\ \mathbf{ 6.7 } & \mathbf{=} & \mathbf{ x } \\ \hline \end{array}\)

After a hard thinking time, I think it is 4.

One, What does this have to do with math?

Two, I dont know, I always thought he blinked

What does this have to do with math?

how do you find the angle after doing dot product?

Formula:

\(\begin{array}{|rcll|} \hline \vec{a}\cdot \vec{b} &=& a\cdot b \cdot \cos(\varphi) \quad & | \quad |\vec{a}| = a \qquad |\vec{b}| = b \\ \cos(\varphi) &=& \dfrac{ \vec{a}\cdot \vec{b} }{a\cdot b} \\ \hline \end{array} \)

The pi thing!

.

8x^2 w + x^2 w

= x^2 w (8+1)

= 9 x^2 w

Which is 9xsquaredw in your "special" notation :)

Hi Melody,

The other sections haven't worked properly for a long time.  I check from time to time.

.

Hi Alan,

that's great, thanks

Hi Alan and Heureka,

None are working for me either.

Do they normally work?

I didn't know we could do matrices on the calc like that.  Thanks Alan :)

(0.0167 cm^-1)^-1

\(\large o.k.\)

\(\large(0.0167cm^{-1})^{-1}=(\frac{0.0167}{cm})^{-1}=\frac{cm}{0.0167}=59.88\ cm\)

  !

Here it is not a right triangle.

None of the other sections works properly as far as I can tell!

You can do some vector/matrix calculations in Scientific mode though.  For example:

Output:

.

What does it mean, that cosine, sine, tangens etc, is hyperbolic?:)

!!!  Strange calculator.  

9/343 = 0.026239...

.

If you are talking about a right triangle then the angle is given by  arctan(opposite/adjacent)

Definitions:

hyperbolic sine:   sinh(x) = (e^x - e^-x)/2    (pronounced shine!)

hyperbolic cosine:  cosh(x) = (e^x + e^-x)/2

hyperbolic tangent:   tanh(x) = (e^x - e^-x)/(e^x + e^-x)   (pronounced tansh!)

.

Hummingbirds lay eggs that are nearly spherical and about 1 centimeter in diameter.

Find the volume of an egg.

The volume enclosed by a sphere is given by the formula:
( Let d = diameter )

\(\begin{array}{|rcll|} \hline \frac16 \pi d^3 \\ \hline \end{array}\)

\(\begin{array}{rcll} V &=& \frac16 \pi d^3 \quad & | \quad d=1\ \text{cm} \\ V &=& \frac{1}6 \pi 1^3\ \text{cm}^3 \\ V &=& \frac{\pi}6 \ \text{cm}^3 \\ V &=& 0.52359877560 \ \text{cm}^3 \\ \end{array} \)

(0.0167 cm^-1)^-1

\(\begin{array}{|rcll|} \hline && (~0.0167\ \text{cm}^{-1} ~)^{-1} \\ &=& (~0.0167^1\cdot \ \text{cm}^{-1} ~)^{-1} \\ &=& (0.0167^1)^{-1}\cdot \ (\text{cm}^{-1})^{-1} \\ &=& 0.0167^{1\cdot(-1)} \cdot \ \text{cm}^{(-1)\cdot(-1)}\\ &=& 0.0167^{-1} \cdot \ \text{cm}^{1}\\ &=& 0.0167^{-1} \cdot \ \text{cm} \\ &=& \frac{1}{0.0167} \cdot \ \text{cm} \\ &=& 59.8802395210\ \text{cm} \\ \hline \end{array} \)