Questions tagged [real-number]
40 questions
0
votes
1 answer
Plot real part of complex-valued function in Python
I am trying to plot the following function...
f(k) = Re[k - 0.5*(sqrt(1 - 4*k) + 1)]
for k = [-2, 2], but the best I can do is...
import matplotlib.pyplot as plt
import numpy as np
k = np.linspace(-2, 2, 100)
f = np.real(k - 0.5*(np.sqrt(1 - 4*k) +…
Landon
- 528
- 2
- 4
- 22
0
votes
1 answer
Large float and double numbers in java printing/persisting incorrectly. Is this behavior due to number of significant digits?
In an application I am working some numbers get converted and saved from long(18 digits) to float/double. These numbers are like Reference/Id's but not used for calculations. Recently I noticed some discrepancies in data being stored as…
Raj
- 1,945
- 20
- 40
0
votes
2 answers
AssertionError - imaginary and real numbers adder
I'm getting error:
java.lang.AssertionError: expected: learning.java.advancedoop2.MyComplex<(2.0+10.0i)> but was: learning.java.advancedoop2.MyComplex<(2.0+10.0i)>
Expected :learning.java.advancedoop2.MyComplex<(2.0+10.0i)>
Actual …
Ziemek
- 1
- 2
0
votes
1 answer
Read from Byte Array and convert to Double
I'm just trying to get an 8 BYTE REAL floating-point number from a BYTE array, which I've previously generated from the contents of a file, as a floating-point number.
At the moment I know that an 8 BYTE Real is the same as a double. Therefore, it…
Sumsum
- 3
- 2
0
votes
1 answer
How to input and output real numbers in assembly language
We solve problems with real numbers in assembly language using FPU. Usually we write input and output code using C language or ready functions.For example:
; Receiving input and output descriptors for the console
invoke GetStdHandle, …
Jane
- 11
- 2
0
votes
1 answer
Choco-solver: coefficients of the variables are real numbers
I am looking for a way to encode mathematical equations on Choco Solver. I see there's a way to encode constraints like:
3x + 4y < 9
But I am trying to encode something like
3.5*x + 4.3*y < 9.3
where x and y are int vars and coefficients are real…
Quang
- 3
- 1
0
votes
0 answers
What's the difference between `Reals` and `Coq.Reals.*` in Coq?
In proving general facts like inequalities and polynomial equations, what's the difference between importing Reals and things like Coq.Reals.{Rineq, R_sqrt, ...}?
I started from searching specific facts/theorems and ended up in using the latter, but…
thor
- 21,418
- 31
- 87
- 173
-2
votes
3 answers
Two digits after the decimal point in a real number in Pascal
So for an example i have a real number let's say 17.4578 but i want to display it in pascal with only two digits after the point so it's 17.45.
What do i write in my program?
Aloulou123
- 3
- 1
- 6
-2
votes
1 answer
Bash script ignores the negative prefix on negative numbers
a=4;
b=7;
c=5;
x =[ a-b ]
if (x -gt c) then {
echo "x is greater"
} else {
echo " something"
}
I want to compare x and c ignoring the negative prefix of c.
simbabarry
- 9
- 2
-3
votes
1 answer
gaussian noise in systemVerilog
I'm writing a Gaussian noise generator in verilog,
the code work fine when the output is a vector of logic (16 bit)
but i need this code to communicate with another block which is using Real inputs
i had tryed the $bitstoreal function but it is not…
saketa
- 1
- 2