Hello! I wonder how calculators work with precision. For example the value of sin(M_PI) is not exactly zero when computed in double precision: #include <math.h> #include <stdio.h> int main() { double x = sin(M_PI); printf("%.20f\n", x); // 0.00000000000000012246 return 0; } Now I would certainly want to print zero when us...
Does those calculators have some type of a processor like a computer? Is it possible to program to them? And finally, is it somehow possible to run the .NET Micro Framework on it? Thank you. ...
Firstly this is not a homework question. I am practicing my knowledge on java. I figured a good way to do this is to write a simple program without help. Unfortunately, my compiler is telling me errors I don't know how to fix. Without changing much logic and code, could someone kindly point out where some of my errors are? Thanks import...
I have an urgent project which need many functions of a calculator (plus a few in-house business rule formulas). As I won't have time to re-invent the wheel so I am looking for source code directly. Requirements: BSD-like licensed (commercial use friendly, GPL won't help) in c/c++ programming language 32-bit CPU minimum dependency on...
I'm trying to calculate somebody's bowel health based on a points system. I can edit the data structure, or logic in any way. I'm just trying to write a function and data structure to handle this ability. Pseudo calculator function: // Bowel health calculator var points = 0; If age is from 30 and 34: points += 1 If age is from 35 ...
Possible Duplicates: Is there a string math evaluator in .NET? Converting string expression to Integer Value using C# Best and shortest way to evaluate mathematical expressions c# evaluating string 3*(4+2) yield int 18 Is there a way to calculate math expressions like (2-3/4*12) in a different way than presented here? h...
Is there any way (or calculator) to determine the relationship between two numbers. ...
Hi! I'm interested in building a derivative calculator. I've racked my brains over solving the problem, but I haven't found a right solution at all. May you have a hint how to start? Thanks I'm sorry! I clearly want to make symbolic differentiation. Let's say you have the function f(x) = x^3 + 2x^2 + x I want to display the derivative...
I am wondering is there any silver sample project available which can monitor the local network traffic (bytes sent received) precisely IPv4InterfaceStatistics like information. ...
Link here: YouTube Video I'm curious and thinking for a long time now I have no idea how this man pulled it off. I just see levers and thread going and coming into cogs at random so it seems. Can someone shed some light for us curious geeks. :) ...
Hello, I have a table in my php code. In the second column of the table, normally it displays "---", and after i click the submit button, it will display the calculating result in the same page. For example, <table> <tr><td>1</td><td>---</td></tr> <tr><td>2</td><td>---</td></tr> <tr><td>3</td><td>---</td></tr> </table> And in the s...
Hello. I have to do a simple calculator in php based on user's input and choice from select field, something like this: <?php $a = $_GET['a']; $b = $_GET['b']; $array = array( "option1" => 0.1, "option2" => 0.15, "option3" => 0.3, "option4" => 3, "option5" ...
I am new to C#.I am learning to make a calculator just like ms windows calculator.the buttons work when i click it, but I want the numpad to work too. Suppose the user types '0', it should be the same as if he clicked the 0 button on my gui. here is my button click event for 0. private void button0_Click(object sender, EventArgs e) ...
As a embedded systems programmer I always need to make lots of base conversions (dec to hex, hex to bin and so on...), and I must admit: Windows 7 calculator is a good calc, but too limited in my point of view. I work a lot with communications protocols and it`s common to need some base conversion in this field of knowledge. I`m looking...
I want to invoke the android calculator from within my app. I don't want to pass anything to it, just provide a quick launch button to it. Can anyone show me how or point me to an example of how to do this? ...
I need help writing custom functions for my casio fx-9860g I have done this before in my Texas Calc but Im not sure there is a way to it with casio calculators... say, for instance, I want to write a simple function like so: public int triple(int x) { return 3x; } I understand this is quite a simple function but I want a way to store...
When I was in the sixth grade, my parents purchased for me a TI-86 graphing calculator. I recall that it was purchased on the same day that "Titanic" on DVD went on sale in the United States. In the years that followed I learned that although the device is advertised as a graphing calculator, it really is a pocket-sized portable compute...
How can I get VB.net to work out that i have pressed +-*/ in Keydown events? At the moment i am using a Select Case: Select Case e.Key 'Numpad Numbers Keydown Events' Case Key.NumPad0 Display.Append("0") txtAnswer.Text = Display.ToString Case Key.NumPad1 ...
Hello all, EDIT Just to clarify, there is no intent of putting this into production. Purely from a coding/automatiion standpoint, and ignoring the fact that there are modules out there to do calcuations, how would one go about with the following request? I'm interested in how VB6 can use APIs to interact with other programs. END E...
Hej guys, I was wondering if you know any well working Math or Calculation engines written in Objective-C? Found a graphing one using CorePlot already.... Thanks for your help! :) ...