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Unsure about performing a calculation with two variables


Unsure about performing a calculation with two variables

By : Michael Kitain
Date : November 20 2020, 01:01 AM
hop of those help? This is what I've gotten so far. After the exchange value is calculated at the end I wanted it to charge a commission on whether or not the user is an Account holder or not (asked at the start). Like if they aren't an account holder then there will be a commission of 2% and 1% if they're. I wasn't sure on how to incorporate it into calculating the commission using the AccHolder variable and the ExcAmount. Anyhelp? , Declare result once.
code :
double result = 0.0;
if (CurChoice.equals("EUR")) {
    result = ExcAmount / Euro;
//...
 } else {
    System.out.println("");
}

double commission = (yn ? 0.01 : 0.02)*result;
System.out.println( "commision: " + ... );
double netPayment = result - commission;


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UI changes are being updated on a thread, and unsure of which thread is performing the update

UI changes are being updated on a thread, and unsure of which thread is performing the update


By : user3838137
Date : March 29 2020, 07:55 AM
With these it helps You should familiarize yourself with the Invoke(...) and BeginInvoke(...) methods and determine what semantics you need for this cross-thread update. Do you want to fire-and-forget, and not wait for the message pump to get back around to your text update? Use BeginInvoke(...). Do you want the thread to block until the UI update has occurred? Use Invoke(...).
Also, bear in mind that if the form may potentially be disposed, or hasn't been shown yet, you need to check more than just the InvokeRequired flag on the form before calling Invoke(...) or BeginInvoke(...). If there is a potential for this case, your logic should look something like this:
code :
public void DoSomeUpdate(string text)
{
    if(this.IsDisposed || (!this.IsHandleCreated))
    {
        // error condition; run away!
        return;
    }

    if(this.InvokeRequired)
    {
        // BeginInvoke or Invoke here, based on the semantics you need
        return;
    }

    this.UpdateSomeLabel(text);
}
How to use jQuery to store number inputs to variables and performing calculation to update number input again?

How to use jQuery to store number inputs to variables and performing calculation to update number input again?


By : Kuldeep Kumar
Date : March 29 2020, 07:55 AM
Hope this helps I am making a BMI calculator using HTML and jQuery. , Try this:
code :
$("#tehbaton").click(function () {
    if($("#height1").val() && $("#height2").val() && $("#weight").val()){
        var height = Number($("height1").val()) * 12 + Number($("height2").val());
        var weight = $("#weight").val();
        $("#bmi").val((703 * weight) / Math.pow(height,2));
    }
});
Iterating through multiple variables while performing a calculation and saving result? List comprehension, enumerate() -

Iterating through multiple variables while performing a calculation and saving result? List comprehension, enumerate() -


By : supr yan
Date : March 29 2020, 07:55 AM
like below fixes the issue I think you need to create n by m zeros matrix, then save all the data to it
code :
ray2 = np.zeros((np.size(T), np.size(RH)))
ray18 = np.zeros((np.size(T), np.size(RH)))

for idx, t_ele in enumerate(T):
    for idx_rh, rh_ele in enumerate(RH):

        ray2[idx][idx_rh], ray18[idx][idx_rh] = rayleigh(t_ele , rh_ele , f, del2, del18)
Not Getting Expected Value when Performing Calculation on Date-based variables

Not Getting Expected Value when Performing Calculation on Date-based variables


By : user2739163
Date : March 29 2020, 07:55 AM
this will help As both operands are integers, the result is also an integer with the fractional part cut off.
Convert one (or all) of the operands to decimal, so that the result is also a decimal.
code :
...
, convert(decimal, 24) / 31 as Col1
, convert(decimal, @DaysRemaining) / @DaysinMonth as col2
...
Need Help for performing below calculation

Need Help for performing below calculation


By : Eben
Date : March 29 2020, 07:55 AM
it helps some times Try a recursive query.
The below example is for Oracle, but it can be easily adopted to SQL-Server.
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