numbers

Output a number raised to a power as a string

ぐ巨炮叔叔 提交于 2019-12-02 13:48:11
问题 I am new to Java and I'm not quite sure how to output an integer raised to a power as a string output. I know that Math.pow(double, double) will actually compute the value of raising a double to a power. But if I wanted to output "2^6" as an output (except with 6 as a superscript and not with the carat), how do I do that? EDIT: This is for an Android app. I'm passing in the integer raised to the power as a string and I would like to know how to convert this to superscript in the UI for the

Converting number into word

柔情痞子 提交于 2019-12-02 13:45:49
I am a beginner and I have written a program in c++ to convert numbers between 0-99999 into words. It is working fine for numbers upto 100 but after that it gives wrong output. I know there are some serious logical errors but I am just unable to figure these out. //This program converts number into words between 0-99999 #include<iostream> using namespace std; main() { long int number,unit,ten,hundred,thousand,ten_thousand; cout<<"Please enter any number between 0-99999: "; cin>>number; ten_thousand=number/10000; thousand=number/1000; hundred=number/100; ten=number/10; unit=number%10; if(number

get extremes from list of numbers [closed]

半城伤御伤魂 提交于 2019-12-02 13:45:47
If I have a list of numbers like this one: 10,9,8,8,9,7,6,5,4,6,7,8,11,10,12,14,16,20,30,29,28,29,27,25,20,18,15,10,8,5,4,1 I want to get the following numbers (accordint to this example) : 10,4,30,1 Is it possible to write a function which will get these extremes? These numbers are values of a chart, I want to get peaks of the chart. ShadowScripter Mine's similar to jprofitt's but I divided them into peaks and valleys, so I can do some more stuff with it. I think his loop is much more cleaner than mine is, but I just wanted to test it out for myself. Don't judge me ee ee e This script just

How do i convert a string of ascii values to there original character/number in python

你说的曾经没有我的故事 提交于 2019-12-02 13:34:30
i have a string with numbers that i previously converted with my encoder but now i am trying to decode it ive searched around and no answers seem to work if you have any i dear how to do this then let me know string = 91 39 65 97 66 98 67 99 32 49 50 51 39 93 outcome = ABCabc 123 outcome = "".join([your_decoder.decode(x) for x in string.split(" ")]) 来源: https://stackoverflow.com/questions/34899602/how-do-i-convert-a-string-of-ascii-values-to-there-original-character-number-in

Oracle 12c - is index on a 'number' column performing faster than index on 'varchar' column?

爷,独闯天下 提交于 2019-12-02 13:25:09
问题 Let's say I have a table in Oracle 12c with columns: create table t1 ( a number (5,0), b varchar (5,0) d ... e ... ); Then I insert 100,000,000 records in both columns which have the same values - e.g. 20151 and '20152' ... (for a first record) 20152 and '20152' ... (for a second record) 20153 and '20153' ... (for a third record) ... Then I add index 1 on column 'a' and index 2 on column 'b'. Question is - would the query perform equally fast when executing against column 'a' as on column 'b'

What does passing an integer number as the argument for `toString` do?

风流意气都作罢 提交于 2019-12-02 13:20:56
I'm taking a course on JavaScript but have no guide on toString method, what's the purpose of these two outputs in JavaScript: (35).toString(36) >>> "z" !!! (35).toString(37) >>> throws a RangeError !!! I am utterly confused as to why I am getting these results, I would really appreciate it if someone could shed some light on this. doubleOrt tldr: Number.prototype.toString can take an argument called radix that specifies the numeric base to use for the string representation of the number in question. Object.prototype.toString() An object's toString method is supposed to return a string

Calculating 2^N in C# with long data type where N is 1929439432949324 [closed]

萝らか妹 提交于 2019-12-02 13:19:19
Currently I need to calculate 2^N , however N can be as large as 1929238932899 and I'm stuck using a long data type which can't hold a number that large. I've currently tried converting to 'BigInt' however I'm still stuck with the long data type restriction from what I've seen as well. I have a function which calculates the power. However, with the long data type, it just returns 0 when the number gets too big. Note that this is just a generic recursive power function. For example, with 2^6 its meant to return 64 and with 2^47 to return 140737488355328. However, when it becomes 2^8489289 , it

How to Calculate (a/b) %c where a,b and c are very large numbers [closed]

半腔热情 提交于 2019-12-02 13:16:35
I have a function f(x)=(1^1)*(2^2)*(3^3)*.....(x^x) i have to calculate (f(x)/(f(x-r)*f(r)))modulo c i can calculate f(x) and (f(x-r)*f(r)). assume f(x) is a and f(x-r)*f(r) is b. c is some number that is very larger. `` so i how can calculate (a/b)%c your f(x) is just ᴨ (PI cumulative multiplication) squared it is hard to write it in here so i will deifine g(x0,x1) instead g(x0,x1)=x0*(x0+1)*(x0+2)*...*x1 so: f(x)=g(1,x)^2 computing h(x,r,c)=f(x)/(f(x-r)*f(r))%c when you rewrite it to g() you get: h(x,r,c)=((g(1,x)/(g(1,x-r)*g(1,r)))^2)%c now simplify (and lower magnitude) as much as you can

Add trailing zeros to an integer without converting to string in JS?

三世轮回 提交于 2019-12-02 13:11:06
I'm looking to add decimals to the end of my integer. As an example: 15 => 15.00 The problem with methods like toFixed is that it will convert it into a string. I've tried to use parseFloat() and Number() on the string, but it'll convert it back to an integer with no decimals. Is this possible? If not, can someone explain to me the logic behind why this isn't possible? EDIT: Welp the intent was to display the number as a number, but from the going consensus, it looks like the way the only way to go about it is to use a string. Found an answer on the why: https://stackoverflow.com/a/17811916

Why my code for checking if a number is a palindrom won't work?

别等时光非礼了梦想. 提交于 2019-12-02 12:58:12
My Java code is here: import java.util.Scanner; public class task2 { public static void main(String args[]) { System.out.print("Input a 3 digit int"); Scanner scan = new Scanner(System.in); int x = scan.nextInt(); int isPalindrome = 0; while (x != 0) { isPalindrome = isPalindrome*10 + x % 10; x /= 10; } { if (x == isPalindrome){ System.out.print ("Yes, this is a palindrome!"); } else { System.out.print("No, try again"); } } } } The code will only recognize a palindrome if the numbers entered are zeroes. I'm having trouble understanding why. This is because the value of x is getting changed