# How do I find what number is 12h06f?

Advertisements I’ve found such numbers time and time again in verilog and digital logic exercises, but I don’t know how I’m supposed to know what number this is or how to write it as 12’b in verilog code. Can someone explain them to me? >Solution : Presumably it’s a 12-bit value in hexadecimal notation. Since… Read More How do I find what number is 12h06f?

# Why 1's complement of float variable is not appropriate?

Advertisements I am writing a simple function to check the 1’s compliment of a floating number. This is the code I have written to verify the value: #include <stdio.h> #include <stdint.h> int main() { float input = 25.456; printf("input val = %f\n",input); uint32_t temp = (uint32_t)input; uint32_t toggleval = ~temp; uint32_t checker = ~toggleval; float… Read More Why 1's complement of float variable is not appropriate?

# How do I know the number of bits in a byte?

Advertisements What is the formula for calculating the number of bits in a byte? What external resources can I find more information? >Solution : There are 8 bits in a byte. Check here for more information. Please do research before posting a question. This could have been easily googled.

# Java Count the Number of Digits in an Integer

Advertisements This is a sample code to Count the Number of Digits in an Integer with java class CountDigits { private static int countDigits(int n){ return n != 0 ? ((int) Math.floor(Math.log10(n) + 1)) : -1; } public static void main(String[] args) { int number = 125; System.out.println("Number of digits : " + countDigits(number)); }… Read More Java Count the Number of Digits in an Integer

# How to get the name of each array as you loop through an array of arrays php

Advertisements I have an array of arrays as so: \$bookPages = array( "page-1-name" => array( "page_title" => "Search results", "page_name" => "search" ) , "page-2-name" => array( "page_title" => "Front Cover | HCDP", "page_name" => "cover" ) ) I am looping through to get the content each array like the "page_title" using a foreach. foreach… Read More How to get the name of each array as you loop through an array of arrays php

# Recreate colormap based on colorscale in matplotlib

Advertisements I have an image of a color scale I filter out the actual color scale by using import cv2 import numpy as np colorbar = cv2.imread(‘colorbar-scheme-elevation.png’, cv2.IMREAD_UNCHANGED) colorbar = cv2.cvtColor(colorbar, cv2.COLOR_BGRA2BGR) hsv = cv2.cvtColor(colorbar, cv2.COLOR_RGB2HSV) lower_gray = np.array([0, 0, 0]) upper_gray = np.array([255, 10, 255]) mask = cv2.inRange(hsv, lower_gray, upper_gray) mask = cv2.bitwise_not(mask) res… Read More Recreate colormap based on colorscale in matplotlib

# if-else-else if statements in Java (codecademy)

Advertisements I’m just starting to learn Java and I just got to the if-else-else if statements section on CodeAcademy. I tried using the if else statement in a method, but I’m not receiving the variable value when I call it, only the if-else statement. I’m guessing this is a very small mistake. (This is my… Read More if-else-else if statements in Java (codecademy)

# How to turn a double to a 64-bit integer bit by bit using unions

Advertisements I would like to store all bits of a double in a 64-bit integer in C. I.e. the most significant bit should be the sign, after that the exponent, then the fraction. I would like to use a union. >Solution : The safest way to do this is to use memcpy. double x =… Read More How to turn a double to a 64-bit integer bit by bit using unions