## microsoft excel – Unsure if vlookup, hlookup or index match needs to be made to fill out values in a X,Y,Z mesh

I would like some help with an an Excel formula as I am unable to infer if I need to use `hlookup`, `lookup` or `index` match for this.

I have 3 columns of data but how can I create a X, Y, Z mesh. How can I create a formula, so that, in my table “This is what I have”, reference the number 1 in Column X and Apple in Column Y located in “Table 1” and return the 1000 located in Column Z?

I would like the formula to output out the numbers 2000 and 3000 as well.

Basically, what formula can I use to get the numbers in red. The last table is how I would like the output to be shown.

## solution verification – How to proof this statement. “There are not odd integers x,y,z according to \$(x-z)^2\$ + \$(y-z)^2\$ = \$(x+y)^2\$.”

I did try to proof this by contradiction(I guess it works). So I suppose this statement is false but I have confused about the meaning of it.

If this statment is false it means “There are odd integers x,y,z according to $$(x-z)^2$$ + $$(y-z)^2$$ = $$(x+y)^2$$.” or “There are odd integers x,y,z according to $$(x-z)^2$$ + $$(y-z)^2$$ $$neq$$ $$(x+y)^2$$.” or…..

Is proof by contradiction a good method? and Could you help me how to do next from the statement that suppose to be false?

Thank you very much.

## javascript – Uncaught Reference Error xyz is not defined when trying to pass parameters

I am currently trying to pass parameters to set the state of the current size selected depending on which option the user is currently on, so i setup a function as well as a parameter that whenever onSelect is triggered it passes the variable of the size but for some reason im getting that my function is not defined, im guessing its my syntax but i cant seem to figure it out, here is my current code:

``````const updateSize = userSize = () => {
setSize(userSize);
console.log(userSize);
}
``````
``````<select className="buttons form-control  mb-2">
</select>
``````

## list manipulation – Thread::tdlen: Objects of unequal length in {{a,b,e},{c,d,f}} {x,y,z} cannot be combined

When I do the Times operation among list like this `{{a, b, e}, {c, d, f}}*{x, y, z}`, the error message is given as Thread::tdlen: Objects of unequal length in `{{a,b,e},{c,d,f}} {x,y,z}` cannot be combined. Actually, the desired result should be `{{a x, b y, e z}, {c x, d y, f z}}`. Are there any bugs?

## Is .xyz is good alternative if .com is taken?

y u no do it?

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## Dot xyz or dot top which is better?

I want to buy a new domain name without dot com. So I consider the XYZ point, but I want to know which one will be better dot XYZ or dot top. What has the best SEO performance for Google?
I know which dot com is the best.

## Physical: physical luminosity and CIE XYZ color space

When reading about the XYZ color space, you regularly find something in the sense that "Y is taken as luminance" or "relative luminance", either for the XYZ color space or in xyY. I am struggling to get an intuition of how this value AND is related to luminance from a photometric perspective. There, the luminosity is closely related to the glow, but is weighted according to the response of our eye. It "contains" all the colors we can see and has real units. Apparently there is very little connection between the two.

Simply put: I go out and measure the spectral radiant power reflected on a surface, then calculate the luminance. How does this relate to Y? Does the physics / units go out the window completely?

## JavaScript: TypeError: xyz is not a function after updating WordPress

After updating WordPress from 4.9.13 to 5.3.2, some scripts on the website stop working strangely … (example for clndr.js).

All scripts are added through `wp_register_script` Y `wp_add_inline_script` WordPress functions.

At the bottom of There are three scripts as always:

``````

var calendar = create_calendar();

``````

Relevant part of `calendar.js`

``````function create_calendar()
{
var calendar = \$('#Calendar').clndr({
// clndr options
});

return calendar;
}
``````

All scripts must be executed in the correct order, but they do not work and in the browser console I have this error:
`TypeError: \$(...).clndr is not a function`

Also, change the call to `create_calendar` In this way:

``````window.addEventListener("load", function(){
var calendar = create_calendar();
});
``````

just change the order of errors in the console.

If I understand everything correctly, this should work …
Any ideas? Or hints how to debug this?