Why does this formula break after 31 loops?
I have the following code: public float SnapValueToCoreBlock(float ValueToSnap) { ValueToSnap = ValueToSnap + 0.5f; ValueToSnap = Mathf.Floor(ValueToSnap); return ValueToSnap; } float …
Tag: floating-point
Eliminating floating point errors with bit masks in c++
Say I have the problem that I want to calculate a large number of doubles and each time I calculate a new double, I want to check to see if I’ve seen this double before. What is the best (fastest) way …
python: converting numpy array to fixed float numbers
I am dealing with a Python function that compute geometrical center for all elements of nestled array representing XYZ coordinates def lig_center(nested_array_list): a = numpy.array(…
convert float to string numba python numpy array
I am running a @nb.njit function within which I am trying to put an integer within a string array. import numpy as np import numba as nb @nb.njit(nogil=True) def func(): my_array = np.empty(6, …
Why does Python’s hash of infinity have the digits of π?
The hash of infinity in Python has digits matching pi: >>> inf = float(‘inf’) >>> hash(inf) 314159 >>> int(math.pi*1e5) 314159 Is that just a coincidence or is it …
Unix command to return maximum float value out of two after subtraction
This is similar to question about getting the minimum/maximum of two numbers, but I’m interested to do the same with float numbers. So basically I’m trying to use shell arithmetic expansion using the …
How can I round a float such that there are only two trailing digits after the decimal point?
I have a float number like 137.57667565656 but I would like to round it such that there are only two trailing digits after the decimal point like the new float number will be 137.58. I tried this so …
Is a number float64?
I have a number e.g. a = 1.22373 type(a) is float Like wise I want to find if a number is float64 or not. How I will find using Python or NumPy?
Clarification on the Decimal type in Python
Everybody know, or at least, every programmers should know, that using the float type could lead to precision errors. However, in some cases, an exact solution would be great and there are cases where …
What MySQL data type should be used for Latitude/Longitude with 8 decimal places?
I’m working with map data, and the Latitude/Longitude extends to 8 decimal places. For example: Latitude 40.71727401 Longitude -74.00898606 I saw in the Google document which uses: lat FLOAT( 10, …