Using the Math package (in different programming languages) method sqrt to calculate the square root of a value.
Questions tagged [math.sqrt]
77 questions
0
votes
1 answer
Ruby - Sqrt on a very large Integer cause Rounding issues
I'm trying to solve a Fibonacci problem and am stumbling into rounding issues.
If i = 8670007398507948658051921 then fib1 = 19386725908489880000000000.0.
My code is below - thanks for any help.
def is_fibonacci?(i)
fib1 = Math.sqrt(5*(i**2)+4)
…
eadon
- 13
- 1
- 4
-1
votes
1 answer
What's wrong in my code???ValueError: math domain error Python -sqrt
import math
a,b,c = map(int,input().split())
x = float((-b + math.sqrt(b**2-4*a*c))/2*a)
y = float((-b - math.sqrt(b**2-4*a*c))/2*a)
if y>x:
x = x1
y = x
x1 = y
if (b**2-4*a*c >=1):
print("Two different roots "+"x1=",int(x)," ,…
tol tol
- 1
-1
votes
1 answer
How to implement pow(x) and sqrt(x)?
I tried looking for a similar answer, but didn't find anything. So here goes.
I am currently tasked with creating a simple calculator with a GUI in Python using the tkinter tools.
I was almost done when I ran into some problems implementing pow(x)…
-1
votes
1 answer
Square negative number in go
I'm having problems to square a negative number in go...
(2*(1-0.5)-4)/((4*(4-2))/(2-1))^(1/2) = -1.06066017
but with go I get NaN
package main
import (
"fmt"
"math"
)
func main() {
fmt.Print(math.Sqrt((2*(1-0.5) - 4) / ((4 * (4 - 2)) /…
Mauro Delazeri
- 61
- 1
- 6
-1
votes
1 answer
Python Plot- Multiple the data in plot figure
I am reading data from a text file but when I do so, I need to multiple this values like 3*sqrt(col1)= x1.append(3*math.sqrt(float(p[1]))) in plot function. How can I multiple column number data before plotting? For example, I will multiple col3…
Nobody
- 79
- 13
-1
votes
1 answer
SyntaxError: Invalid Syntax in math.sqrt in Python
I tried this
import math
from math import sqrt
def euclideanDistance(xtr, ytr, Ltr):
distance = 0
for x in range(Ltr):
distance += pow((xtr[x] - ytr[x]), 2)
return sqrt(distance)
But it returned me the following error:
File "", line 5
…
Rifat
- 3
- 1
- 3
-1
votes
1 answer
Count triangle area - working as vars but not wrapped as a function
A noob question. I am playing with http://www.w3resource.com/javascript-exercises/javascript-basic-exercises.php#EDITOR javascript exercises. Exercise number 4. Count the area of a triangle.
Why this works:
var a = 5;
var b = 6;
var c = 7;
var p =…
Mac_W
- 2,927
- 6
- 17
- 30
-1
votes
1 answer
Math.Sqrt() when using BigInteger?
I need to make a Math.Sqrt calculation but it must support really big numbers so I'm trying to use BigInteger but Math.Sqrt doesn't support them.
Are there any other options? How can I do this calculation and result is double ?
Sample :
sqrt 5 =…
CarlesBerg
- 33
- 4
-2
votes
4 answers
Can someone explain this number = 80; number = (int)math.sqrt(number++) ; number = 8?
int number;
number = 80;
number = (int)math.sqrt(number++)
System.out.println(number)
This is the above code. I am new to programming and have a decent under standing of mathematics.
I am aware the SQRT is 8. However in this case i am…
JAVAJoseph
- 31
- 9
-2
votes
2 answers
Math.sqrt showing error in Eclipse
This is the code for a calculator app for Android I'm making:
package com.example.calculator;
import java.text.DecimalFormat;
import java.text.NumberFormat;
import java.util.Iterator;
import java.util.Stack;
import java.lang.Math;
import…
user2201935
- 396
- 1
- 7
- 19
-4
votes
2 answers
Math.pow and Math.sqrt in Java
Okay, I have found 2 short codes that work, but I want to understand how they work. I have googled and check the links such as:
http://www.tutorialspoint.com/java/lang/math_pow.htm
http://www.tutorialspoint.com/java/lang/math_sqrt.htm
But the…
Acemi
- 173
- 1
- 4
- 13
-5
votes
1 answer
How to get Square root of a number without import anything in python?
How to get Square root of a number without import anything in python?
You know we can do this:
import math
a = 4
s = math.sqrt(a)
but i want do this more simple without import any library.
Kasra Najafi
- 560
- 5
- 11
-5
votes
4 answers
Return value of math.sqrt
I have been try to draw the function of y^2=4*a*x but I have run into a problem. when I use the math.sqrt function to find the square root of a value which has two answer +or- something i only get the positive value. i.e if i found the sqrt of 4 it…
opeyemi
- 83
- 1
- 9
-6
votes
3 answers
Finding largest square less than a given number in Java
I want to write a java program to find the largest square number which is less than or equal to a given number.
For example when I insert 10 as the inputted number, the answer is 9 because 9is the largest square up to 10
I understand loops, but I…
kago
- 47
- 8
-6
votes
2 answers
Java math issue
Can any one tell me how to write this type of code in eclipse propject. basically i want to square root the samv and samvi variables. i am getting syntax error.
int ki, l,;
int samv = (tdrum / k) / l;
int samvi = (tdrum / ki) / l;
int samv2 =…
Monika
- 74
- 7