Hi, I'm trying to create a random float between 0.15 and 0.3 in Objective-C. The following code always returns 1: int randn = (random() % 15)+15; float pscale = (float)randn / 100; What am I doing wrong? ...
I"m planning to store my data in a binary format as a resource, read it into an int buffer and basically pass it straight down to a native C++ function, which might cast it to a struct/class and work with it. No pointers, obviously, just ints and floats. The question is - what kind of fixing up do I need to do? I suppose that I need to ...
I have to calculate some floating point variables and my colleague suggest me to use BigDecimal instead of double since it will be more precise. But I want to know what it is and how to make most out of BigDecimal? Thanks! ...
#include <stdio.h> union NumericType { float value; int intvalue; }Values; int main() { Values.value = 1094795585.00; printf("%f \n",Values.value); return 0; } This program outputs as : 1094795648.000000 Can anybody explain Why is this happening? Why did the value of the float Values.value increase? Or am I m...
I've got in the habit of using float f = 0.; //with a trailing period when assigning a zero value to a float in C. Should I be using float f = 0.f; //with an explicit float size or just stop messing about and use float f = 0; //with no trailing anything? Where did I pick up that habit and why? Is any version more right or wrong than a...
Hi there. I wanted to make simple form, without awesome div's and CSS - it structure is like: <form id="cform" action="/" method="post"> <fieldset> <label class="first" for="name">Nazwa firmy: </label><input id="name" name="name" type="text" /> <label class="first" for="email">Email: </label><input id="email" name="email" type="text" />...
I'm looking at the original source code for Identicons. There's a bit of code that does some bit twiddling to extract red, green and blue components: int blue = (code >> 16) & 0x01f; int green = (code >> 21) & 0x01f; int red = (code >> 27) & 0x01f; The code variable is a 32 bit integer. My question is this: What's the difference be...
i'm trying to do something like: -------------------------------------------- | --------- text text text text text text | | | image | text text text text text text | | | | text text text text text text | | | | text text text text text text | | --------- text text text text text text | | text text text text text text tex...
Hi I'm having trouble setting something to float right in JS. My code is as follows: var closebutton = document.createElement('div'); closebutton.style.styleFloat = "right"; alert(closebutton.style.styleFloat); closebutton.style.background = "#f00"; closebutton.innerHTML = '<a href="">✖</a>'; titlebar.appendChild(closebutton); ...
What are some important considerations for developers using JavaScript's Number type? I know it's an implementation of C's double type, but I'm a self-taught Python developer so that doesn't take me very far. Pointers to well-written articles will be great answers. Thanks! ...
Hi, I have two floated collumns side by side. The user can hide/collapse one of that collumns. In that case I want the other collumn to expand to fit the entire container. Is this possible with CSS? In resume, it's possible to make a float to expand to the size of it's container? Even if the element is floated, if it has width:auto i...
I'm making an application which is listening to prices being updated regularly, but occasionally my data source throws me something like "1.79769313486232e+308". The numbers that get sent will never by really big numbers (eg. "179769313486232e+308"), but as with the example above, they come with a lot of precision. I'd be happy to drop ...
I am trying to find out the precision level for various floating point formats in C (i.e. float, double and long double). Here is the code I'm using at the moment: #include <stdio.h> #define N 100000 int main(void) { float max = 1.0, min = 0.0, test; int i; /* Counter for the conditional loop */ ...
I have a set of divs with variable heights that have been floated left. When there are too many of said divs on a single line, the next div wraps to a new row (as it should). The problem I'm having is that the new row is started at an offset x position on the new row, such that the div is beneath the last div in the previous row that has...
Ok here goes my situation: I have a core-data generated class Quantity which has one of its attributes 'Value', marked as a float. There's a convenience method in the Quantity class which helps me set this property: - (void)setValueValue:(float)value_ { [self setValue:[NSNumber numberWithFloat:value_]]; } Now when I set try se...
what's the most elegant way of rounding a float to it's closest 1/4ths in Objective C? For example: 3.14 should be 3.25 2.72 should be 2.75 6.62 should be 6.50 1.99 should be 2.00 etc. ...
hi, i wanted to convert double to float in C, but wanted to preserve the decimal point exactly as possible without any changes... for example, let's say i have double d = 0.1108; double dd = 639728.170000; double ddd = 345.2345678 now correct me if i am wrong, i know that floating point precision is about 5 numbers after the...
I'm trying make a <dl> to define the icons I am using on the page. I want it so that every icon is inside a <dt> and it's definition is inside the following <dl>. After every icon definition, I want a line break. Simple, right? Well, IE7 says no! Here is my HTML: <dl style="display: block;" id="surveysIcons" class="icons"> ...
Suppose there is such HTML tags: <span> <span id='s1'>Text 1</span> <span id='s2'>Text 2</span> </span> And the css style is: #s1 { float: left; } #s2 { float: right; } What is the standard behavior of the display? In some browser, I see Text 1 Text 2 In som...
I'm a fairly green programmer, and I'm learning Python right now. I'm up to chapter 17 in "Learn to Think Like a Computer Scientist" (Classes and Methods), and I just wrote my first doctest that failed in a way I truly do not fully understand: class Point(object): ''' represents a point object. attributes: x, y ''' ...