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QUESTION
I am trying to make a calculator, simply my problem is this:
- Page refreshes.
- User clicks on any number and the number gets added to the
First Number: nums_clicked
h1. - If user clicks on an operator sign
(+ - *)
, the clicked boolean becomestrue
. - If clicked is
true
, add the numbers clicked to theSecond Number: nums_clicked
My problem is even if I click on an operator sign, it keeps adding the numbers I am clicking to the First Number: nums_clicked
h1, why is that happening? It even happens while clicked is TRUE!
My
...ANSWER
Answered 2022-Apr-01 at 23:24Your main issue was that you were never creating the click events for the second number, because those were behind the if(!result...
. Like Barmar mentioned, even if you created the click events for the second number, the events from the first number would be triggered also and it would still not work. Also you did not had anything for setting the actual results.
I made some changes on your code to make it simpler to understand, but still trying to follow your logic. Here you go:
QUESTION
Goal: I have a ball in a triangle. The ball has an initial position and velocity. I'm trying to figure out which side of the triangle the ball will hit.
What I've Tried: I derived a formula that outputs which side the ball will hit, by parametrizing the ball's path and the triangle's sides, and finding the minimum time that satisfies the parametric equations. But when I implement this formula into my program, it produces the wrong results! I've tried many things, to no avail. Any help is greatly appreciated. The MWE is here: CodePen
...ANSWER
Answered 2022-Feb-20 at 08:05I couldn't figure out your math. I think you should try annotating this kind of code with explanatory comments. Often that will help you spot your own mistake:
QUESTION
I am making a string calculator using numbers. For example: 154 + 246 = 154246
So the user will enter an input of a group of numbers, to separate the numbers using \n
. As you know, \n
is used to make a new line, but I need to use at as any normal string. I need to separate the numbers using \n
into a list.
Code:
...ANSWER
Answered 2022-Mar-18 at 14:24You can escape the \n
using an other \
.
QUESTION
Sorry for asking the same type of question, but I just can't wrap my head around how to take my custom function and iterate it over grouped data. So bonus points if anyone can point me to some in-depth resources.
This works as intended:
...ANSWER
Answered 2022-Mar-08 at 19:01We may use group_modify
here
QUESTION
I have to do a simple calculator +
, -
, *
and /
on PowerShell for my coding introduction course. Why my Variable Valeur1
& Valeur2
don't remain intact during the integer validation ? My 4 options give a random answer and don't remember the initial value of my 2 Read-Host
Variables.
ANSWER
Answered 2022-Feb-28 at 16:03From the Int32.TryParse(String, Int32)
Documentation:
result
Int32
When this method returns, contains the 32-bit signed integer value equivalent of the number contained ins
, if the conversion succeeded, or zero if the conversion failed.
When you do [ref]$OK
, if the conversion succeeds, this variable will hold the parsed result of your .TryParse
operation, but, you're overwriting this value on your if
and else
conditions ($OK = $true
and $OK = $false
).
Furthermore, the output from the .TryParse
method will be $true
/ $false
depending on the success of the operation (this boolean will be assigned to $valeur1
and $valeur2
since both variables have assigned this operation).
Returns
Boolean
true
ifs
was converted successfully; otherwise,false
.
Here is a simplified, working, variation of your code. It's worth mentioning that, since you're performing 2 parse operations, a function (ParseInput
) holding the same logic would make more sense so that the code is not repeated.
QUESTION
I've just used haskell as calculator expecting to get some cryptic error message about ambiguity of the type instance of the numeric literal. But got none.
For example in ghci
...ANSWER
Answered 2022-Feb-20 at 17:15Haskell has a type defaulting mechanism to avoid having to specify the type of every numeric literal you type. The default type for Num
is Integer
, while for Fractional
(literals with a decimal point) it is Double
. You can change these defaults using a top level default declaration. This article explains the defaulting rules
QUESTION
I have a data validation list value which my macro will copy data to a specific place in the workbook based on this value. However, when a value is selected from the data validation list the macro skips the IF statement, as if the statement is false. Could you please help me understand why this is happening? If I remove the data validation, the macro works as expected. Thank You!
...ANSWER
Answered 2022-Feb-08 at 03:16QUESTION
ANSWER
Answered 2022-Jan-28 at 19:37Something like this? I have defined a variable ndays
to test with the posted data.
Also note that since Loan
is a logical variable, there is no need to test the equality with TRUE
or "TRUE"
.
QUESTION
I'm a newbie in html & css. I'm trying to code the output in this image https://i.stack.imgur.com/Qy7Sd.png
The only problem here is that when I add the brick background it also appears on the white portion of the output which I don't want. Here is the code I've written so far:
...ANSWER
Answered 2022-Jan-24 at 19:14I think it would be better if you wrapped everything in a div like this:
QUESTION
I'm just working on a simple calculator for a small project of mine. I'm just hoping to get help with my calculatArea1 function.
I'll attach a few images showing the webpage, html code, and Javascript.
The html starts with a empty row with 3 cells so the user can add in the height and width of the window. Then, there's a button that allows the user to add a new row/window. This is all working fine.
The problem I'm having is, whenever I add multiple rows, then start adding in the width & height then click calculate it will only calculate the top row.
I though I might add also, if I start fresh with one row, then add the height & width, then click calculate. Then, click add window, then add the width & height, then calculate again. it works.
I just want to be able to add in as many rows as I need, then add in the data, then click calculate.
Any suggestions would be much appreciated, cheers!
HTML
...ANSWER
Answered 2022-Jan-23 at 05:38go to the add window button and add, onclick="addNewWindow()"
then add this function
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