i,j element of C is the row i of A multiply by the j column of B. The kernel of your loops should be: sum = sum + (*(A+i*N+k)) * (*(B+k*N+j)); ...

python,string,variables,integer,multiplying

Regular expressions with a custom substitution function seem to suit the task well. We can find all numbers in a string, convert them to integers and perform some arithmetic on them. After that they need to be converted back to strings to replace the former text. import re text =...

c#,matrix,console-application,multiplying

You don't need any rowcountmatrix1..columncountmatrix2: ask arrays for its dimensions: public static int [,] FalkScheme(int[,] Matrix1, int[,] Matrix2) { if (Object.ReferenceEquals(null, Matrix1)) throw new ArgumentNullException("Matrix1"); else if (Object.ReferenceEquals(null, Matrix2)) throw new ArgumentNullException("Matrix2"); int r1 = Matrix1.GetLength(0); int c1 = Matrix1.GetLength(1); int r2 = Matrix2.GetLength(0); int c2 = Matrix2.GetLength(1); if (c1...

That is double's precision. You could use cookies = Math.round( cookies * 100.0 ) / 100.0; ...

well multiplying 2.5 with 2.5 still results in 6.25 ;-) at least my calculator tells me that. What you probably wanted to do was echo $sale_limit_gen['value'] * $sale_limit_ale['value']; instead of echo $sale_limit_ale['value'] * $sale_limit_ale['value']; so its a matter of a simple typo....

c#,.net-3.5,int,long-integer,multiplying

Where does this minus from? From the integer overflow. Note that your code is equivalent to: int a = 256 * 1024 * 1024; int b = 8; int tmp = b * a; long c = tmp; Console.WriteLine(c); I've separated out the multiplication from the assignment to the...

You're getting your numbers of rows and columns mixed up. The idea is to multiply A (I x K) by B (K x J), and here's what the code does: int n1 = one.data[0].size(); // this is K int n2 = two.data.size(); // this is also K int nCommon =...

I did not completely get what you're after, but I'm pretty sure anyway what the problem is. To me it seems, that you want to calculate the sum of all products. Instead, you're returning the set of sums of individual products. Instead of <umsGesamt>{ for $i in $r let $x...

Working fiddle http://jsfiddle.net/anilk/6fLk8w8a/1/ updated js $(function(){ $('.txtMult').change(function(){ alert("work"); var p=$(this).parent().parent() var m=p.find('input.txtMult') var mul=parseInt($(m[0]).val()*$(m[1]).val()).toFixed(2) var res=p.find('.multTotal') res.html(mul); var total=0; $('.multTotal').each(function(){ total+=parseInt($(this).html()); }) alert(parseInt(total).toFixed(2)); $('#grandTotal').html(parseInt(total).toFixed(2)); }); }) $('.selectpicker').change(function() { calcVal(); }); function...

Generate a matrix: m0 <- m <- matrix(1:1e4,100,100) One way to do it: tenthrows <- seq(1,100,by=10) m[tenthrows,] <- m[tenthrows,]*10 Doing it with a for loop would be less efficient. I can't think of a reason you would want to do it that way, unless (a) this is homework, (b) this...

swift,variables,double,multiplying

You can only multiple two of the same data type. var billBeforeTax = 100 // Interpreted as an Integer var taxPercentage = 0.12 // Interpreted as a Double var tax = billBeforeTax * taxPercentage // Integer * Double = error If you declare billBeforeTax like so.. var billBeforeTax = 100.0...

sql,asp.net,vb.net,datatable,multiplying

You could try something similar to this: DataTable DataTable3 = new DataTable(); DataColumn myDataColumn; myDataColumn = new DataColumn(); myDataColumn.DataType = Type.GetType("System.String"); myDataColumn.ColumnName = "IZ"; DataTable3.Columns.Add(myDataColumn); DataColumn myDataColumn; myDataColumn = new DataColumn(); myDataColumn.DataType = Type.GetType("System.String"); myDataColumn.ColumnName = "MA"; DataTable3.Columns.Add(myDataColumn); DataColumn myDataColumn; myDataColumn = new DataColumn(); myDataColumn.DataType =...

assembly,x86,factorial,multiplying

479001600*13=6227020800, or, 0x17328CC00 in hex. This is too big for 32bits. 1*0x100000000=0x100000000 0x17328CC00-0x100000000=0x7328CC00, or 1932053504 in decimal. So, no news here. Put another way, your results are 1 in EDX and 1932053504 in EAX. EDX contains the higher-order 32 bits of the result, so multiply by 2^32, ie. 0x100000000: 1...

I found the solution! $(function(){ $('.in input').change(function(){ var p=$(this).parent().parent() var m=p.find('input.txtMult') var mul=parseFloat($(m[0]).val()*$(m[1]).val()).toFixed(2) var res=p.find('.multTotal') res.html(mul); var total=0; $('.in .multTotal').each(function(){ total+=parseFloat($(this).html()) }) $('.in #grandTotal').html(parseFloat(total).toFixed(2)) }); }) table class='in'> <tr> <td> <input value="0" class ="txtMult" type="number" name="txtEmmail" /> </td> <td> <input...

map does not change the original list; it simply returns a new list. Try: prices = map(float, prices) ...

optimization,filter,average,ieee-754,multiplying

I don't think that multiplying a floating-point number by a power of two is faster in practice than a generic multiplication (though I agree that in theory it should be faster, assuming no overflow/underflow). Said otherwise, I don't think that there is a hardware optimization. Now, I can assume that...

You don't show what you are aiming for, but it looks good to me using the blend option: convert -size 200x187 xc:red red.png convert http://i.imgur.com/P2s0cKQ.png red.png -compose blend -composite out.png Or, you can do it all in one go, like this: convert http://i.imgur.com/P2s0cKQ.png \ \( +clone -evaluate set 0 -channel...

java,arrays,matrix,multiplying

Well the first thing I would do is 0-initialise colaC since you're using += on its entries. The way you're doing it now can't lead to the correct result.

javascript,textbox,multiplying

The problem is that you've not set id attribute for number2 but instead you've set two name attributes, so the document.getElementById('number2') fails. Change one of them to id B:<input id="number2" name="number2" pattern="[0-9.]+" type="number" onkeypress='return event.charCode >= 48 && event.charCode <= 57' required /> DEMO...

arrays,for-loop,numpy,add,multiplying

import numpy as np n, k = 30, 40 U = np.random.random((n, n, k)) K = np.random.random((n, n, n)) def using_loops(U, K): S = np.empty((n, n, n)) for i in xrange(n): temp = np.zeros((n, n)) for j in xrange (n): if j != i: temp += np.dot(U[j], U[j].T) S[i] =...

java,android,operator-keyword,multiplying

half * basis is illegal as basis is of type EditText (and so is hoogte) What are you trying to multiply half by? Maybe you need to assign the results of Double.valueOf(tussenBasis) and Double.valueOf(tussenHoogte) to a double variable and use that in your multiplication? EditText basis = (EditText)findViewById(R.id.Basis); String tussenBasis...

You need to say: user = int(user)*3 This makes the value of user the original times by 3. Before, you didn't do anything to the value of the multiplication. You need to save the value in a variable...

sql,select,sql-server-2012,sum,multiplying

How About This. The case is just to avoid div by Zero errors. SELECT sum( Isnull(tbl.quantity,0) * Isnull(table2.price,0) ) as grandtotal, tbl.PartNumber, Sum(tbl.quanity), case when Isnull(Sum(tbl.quanity),0) = 0 then null else sum(Isnull(tbl.quantity,0) * Isnull(table2.price,0) ) / Sum(tbl.quanity) end as Price FROM (SELECT left(itemnumber, 10) as itemnumber, quantity FROM table1 WHERE...

c#,vb.net,combobox,textbox,multiplying

In cboDrinks you can set .DisplayMember with drinks names and .ValueMember with drinks prices. Then you can use a similar code: Msgbox(CDbl(Me.cboDrinks.SelectedValue) * CInt(Me.txtNoDrinks.Text)) ...

excel,function,drop-down-menu,vlookup,multiplying

Please try: =G5*VLOOKUP(H5,Sheet2!A1:B2,2,0) ...

Here's something to point you in the right direction... private void button1_Click(object sender, EventArgs e) { float tbox1 = float.Parse(textBox1.Text); float tbox2 = float.Parse(textBox2.Text); float tbox12; if (textBox1 != null && textBox2 != null) { tbox12 = tbox1 + tbox2; textBox3.Text = tbox12.ToString(); } } private void button2_Click(object sender, EventArgs...