# [37] Results

### Golang : Check if integer is power of four example

golang math-pow power-ofYou need to test if a given integer is a power of 4. For example, if given number =….... read more

### Golang : Edge detection with Sobel method

golang edge-detection sobel view-image rgbaAbility to detect edges and lines in a picture is the foundation for computer vision or better known in computer….... read more

### Golang : Test if an input is an Armstrong number example

golang armstrong number cubicAn Armstrong number of three digits is an integer such that the sum of the cubes of its digits is….... read more

### Golang : Math pow(the power of x^y) example

golang math-pow power-ofNo programming language will be complete without `the power of`

math function. This tutorial is a simple example on how….... read more

### Swift : Get substring with rangeOfString() function example

swift sub-string range-of-stringYou have a string and you want to get(extract) the sub string from start to {0} and from….... read more

### Golang : Find relative luminance or color brightness

golang luminance brightness RGBA color-codeYou need to find the relative luminance (brightness or perceived brightness) of a color to another color. You also….... read more

### Golang : Get RGBA values of each image pixel

golang rgba at image width heightYou need to find out each pixels R,G,B,A values on an image. Maybe to do ASCII art, edge….... read more

### Golang : Number guessing game with user input verification example

golang number-guessing integer input-verificationHelping a Golang student from Mexico. She is building a simple random number guessing game and she wants to know….... read more