Stack Overflow
Stack Overflow

Questions tagged [math-functions]

56 questions
47
votes
1 answer

What exactly is std::labs() there for?

I read about the std::abs() function when browsing cppreference. On that page I have also seen a std::labs() function. Which has the same prototype as one of the std::abs() overloads (the one for long). long abs( long n ); long labs( long n ); and…
msc
  • 33,420
  • 29
  • 119
  • 214
35
votes
2 answers

Math functions in angular2 bindings

Is there a way to use math functions in angular2 bindings? example
{{Math.round(variable/12*2)}} {{Math.round(variable/12*2)}} …
Jagadeesh Govindaraj
  • 6,977
  • 6
  • 32
  • 52
23
votes
5 answers

Function to Remove the Decimal Places

What is the JavaScript Math.Floor() equivalent in VBA?. this function should remove all the decimal places and return only an integer.
Sami Al-Subhi
  • 4,406
  • 9
  • 39
  • 66
20
votes
3 answers

Need help rounding to 2 decimal places

Why is it that when I do the following... Math.Round(0.75, 1, MidpointRounding.AwayFromZero) I get 0.8 but when I do the following... Math.Round(0.575, 2, MidpointRounding.AwayFromZero) I don't get 0.58. Instead I get 0.57. I want anything that is…
Steve B
  • 557
  • 2
  • 7
  • 23
8
votes
1 answer

Which functions are affected by -fno-math-errno?

I have been excited by this post: https://stackoverflow.com/a/57674631/2492801 and I consider using -fno-math-errno. But I would like to be sure that I do not harm the behaviour of the software I am working on. Therefore I have checked the (rather…
Benjamin Bihler
  • 1,612
  • 11
  • 32
4
votes
2 answers

POWER does not reverse LOG and vice versa

The problem I have with POWER/LOG is that although they seem to adapt to the data-type you send in (the output variable type matches the first variable's type), the precision seems to stop close to the limits of a float, resulting in incorrect…
Keith Zink
  • 41
  • 3
3
votes
1 answer

Why is Boost implementation 5-10x slower than R's

I am building an app that frequently computes the regularized incomplete beta function. The app is written in C++ and calls R::pbeta(). When I tried to multithread the app, some warning messages from R::pbeta() smashed the stack. So I turned to…
user2961927
  • 1,290
  • 1
  • 14
  • 22
3
votes
3 answers

Error when importing mathematics in Unity3d

When I try to import mathematics it throws me an error saying that '' error CS0234: The type or namespace name 'Mathematics' does not exist in the namespace 'Unity' (are you missing an assembly reference?)'' I tried, Using System.Mathematics, Using…
Fame Star
  • 45
  • 1
  • 6
2
votes
1 answer

Swift: calculating atan2(y,x) for FloatingPoint numbers?

If the only thing I know about the variables x, y is that they are of type T which is conforming to the FloatingPoint protocol, how can I calculate the value of atan2(y, x) and return it as an instance of type T? Actually, I was trying to implement…
lochiwei
  • 1,240
  • 9
  • 16
2
votes
1 answer

Graphing function from string doesn't evaluate correctly at 0

I'm trying to create a grapher using matplotlib.pyplot and want to graph a function that comes like a string import matplotlib.pyplot as mpl import numpy as np def plot2D(*args): mpl.grid(1) xAxis = np.arange(args[1],args[2],args[3]) …
Secozzi
  • 252
  • 3
  • 10
2
votes
0 answers

Graphing functions ReactJS

I am looking for a graphing library that can be used to graph functions, not data points. I have searched for a graphing library that: graphs mathematical functions, rather than data points (both is fine as long as it does the first) is…
Ryan Cocuzzo
  • 3,109
  • 7
  • 35
  • 64
2
votes
1 answer

unity c# Mathf.FloorToInt(-0.5) returns 0 (acts like Mathf.CielToInt)

Here's the script reference document for Mathf.FloorToInt As you can see, it should round -0.5 down to -1. For some reason it seems to return it as 0 when used with my calculations. I have two versions of the same functions that work in a very…
IAmJersh
  • 742
  • 8
  • 25
1
vote
1 answer

How do I add values to my graph in core plot swift?

let graph = CPTXYGraph(frame: hostview.bounds) hostview.hostedGraph = graph graph.paddingLeft = 0.0 graph.paddingTop = 0.0 graph.paddingRight = 0.0 graph.paddingBottom = 0.0 graph.axisSet =…
Gabriel
  • 37
  • 4
1
vote
1 answer

Unit Test Mathf.Sine C# / Unity

I am trying to write down a unit test to check if a new vector3 returns (cos(angle), 0, sin(angle)). So if pass angle = 0, it should returns (1,0,0). I know it is something related to the Episilon, but I don't know how to formulate it. Here is my…
Sokratis Papageorgiou
  • 23
  • 4
1
vote
1 answer

Mathf.PingPong from 1 to 0

I have created a helper to PingPong from 1 to 0, but I'm having a hard time inverting this, so that the value goes from 1 to 0. Below you can see the code, I'm currently using. I'm also not sure if this is even possible. _lerpPulse =…
Quincy Norbert
  • 431
  • 1
  • 6
  • 18
1
2 3 4