calculator

How to calculate a Mod b in Casio fx-991ES calculator

由 自作多情 提交于 2019-12-03 00:28:54
问题 Does anyone know how to calculate a Mod b in Casio fx-991ES Calculator. Thanks 回答1: This calculator does not have any modulo function. However there is quite simple way how to compute modulo using display mode ab/c (instead of traditional d/c ). How to switch display mode to ab/c : Go to settings ( Shift + Mode ). Press arrow down (to view more settings). Select ab/c (number 1). Now do your calculation (in comp mode), like 50 / 3 and you will see 16 2/3 , thus, mod is 2 . Or try 54 / 7 which

I am trying to write a simple calculation program but the answer keeps coming back as 0

由 淺唱寂寞╮ 提交于 2019-12-02 23:49:13
问题 I have spent a couple hours trying to figure out why this comes back as 0 If someone could help that would be great. 1 /*Written by Connor Green*/ 2 /*CISP 1010 01/28/17*/ 3 4 #include <iostream> 5 using namespace std; 6 7 int main() 8 9 10 { 11 int carton_size, number_cartons, eggs_per_omelette, number_of_omelettes; 12 /*This will tell you how many omelettes you can make*/ 13 14 number_of_omelettes = carton_size * number_cartons / eggs_per_omelette; 15 cout << "Welcome to the Egg Ordering

Python Divide by 0 Error

由 a 夏天 提交于 2019-12-02 23:43:00
问题 I am currently using this Python code: valid_chars = "0123456789-+/* \n"; while True: x = "x=" y = input(" >> ") x += y if False in [c in valid_chars for c in y]: print("WARNING: Invalid Equation"); continue; if(y == "end"): break exec(x) print(x) It crashes when the user does something like this: 9/0. Error: ZeroDivisionError: division by zero What are some ways that will prevent the user from dividing something by zero? 回答1: You can except the ZeroDivisionError like this x = "1/0" try: exec

How do a simple calculator in Android? How to do it using Buttons and single edit text?

由 落爺英雄遲暮 提交于 2019-12-02 19:51:02
问题 I am learning Android so I want to keep things simple. I have to add two numbers and display the result in a single editbox. To add with the second number you have store the first number in a variable. Then later add using this variable with the second number in the edit text. If you look at the xml and Java Code below you will have a better idea. Thanks in advance. <?xml version="1.0" encoding="utf-8" ?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android

Calculator in java [closed]

由 时光怂恿深爱的人放手 提交于 2019-12-02 18:50:14
问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 6 years ago . Lately I've worked on simple calculator that can add, substract, multiply and divide. public static void main(String arr[]){ double num1, num2; String ans = null; System.out.println("Calculator manu:"); System.out.println("\n"+"a for adding"); System.out.println("b for substracting"); System.out.println("c for

How do I sum numbers using a prompt, like a simple calculator? [duplicate]

由 丶灬走出姿态 提交于 2019-12-02 18:32:54
问题 This question already has answers here : Sum of two numbers with prompt (8 answers) Closed 4 years ago . I tried to do a REALLY simple thing using JavaScript, a percentage calculator. This is the code: var num = prompt("What is the number?") var perc = prompt("What is the percentage of change?") var math = num / (perc + 100) * 100 var result = alert(eval(math)) But, for some reason, I can sum, for example: var num1 = 15 var num2 = 100 alert(num1 + num2) It will display 115, but I can't sum

How to let the user reuse a result from the previous computation in a python calculator

由 纵然是瞬间 提交于 2019-12-02 18:18:45
问题 I am fairly new at python so I don't know much about it. I made a calculator and I want it to accept a: ans() input. Currently, there is a part that stops the program from executing an input if there is something other than [0-9 */-+] so it does not crash. How can I make ans() represent the output of the equation last entered so I can enter something like this: >> 8*8 #last input 64 #last output >> ans()*2 #current input 128 # current output Hopefully I explained everything correctly and here

Simple calculator using command line with C++

由 我的未来我决定 提交于 2019-12-02 17:56:06
问题 I'm writing a project that we do simple calculator from command line. The users input in this format programname firstNumber operator secondNumber . Here what I got so far: #include <iostream> #include <fstream> #include <iomanip> using namespace std; int main(int argc, char* argv[]) { cout << fixed << setprecision(2); if (argc != 4) { cerr << "Usage: " << argv[0] << " <number> <operator> <number>" << endl; exit(0); } else { double firstNumber = atoi(argv[1]); char theOperator = argv[2][0];

Calculator: Buttons ONLY show up when mouse hovers over them in Test JFrame class

由 扶醉桌前 提交于 2019-12-02 17:23:03
问题 I'm rushing, so idc about the duplicate. I'm still trying to learn Java and the terms, until the end of this semester, that is. I used a template. I'm using a background image ("panel"), which complicates everything. Basically, the buttons only show up when I hover over them. It has something to do w/ the JPanels, clearly. I excluded code that you'd probably ask for so that hopefully, someone helps me this time because my buttons are not like the ones I've seen when looking on other

Price Calculator based on Quantity [closed]

由 天大地大妈咪最大 提交于 2019-12-02 14:52:02
I am trying to create a simple script to add to my html website. I need it to calculate the price based on the quantity the user inputs. For example, a value of 1-1000 will be multiplied by 1.50 and displayed, 1001-5000 multiplied by 1.20 and displayed, 5001-10000 multiplied by 1 and displayed and any number above that would display an error message like "Must be below 10000". I've been trying to do this in php with no success. You can use if to to check the vault and diplay the calculated value: if($input <= 1000) { echo $input * 1.5; } elseif($input <= 5000) { echo $input * 1.2; } elseif(
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