SAS/GRAPH software uses these values if you do not explicitly select colors in other statements. Refer to Graphics Options and Device Parameters Dictionary for complete information about each of these ...

With the use of Microsoft's PowerPoint presentation software, you have a powerful tool for creating slideshows that contain any number of different elements. One option you have is to create and edit ...

Color can make it easier for people to identify important information, such as legends on an Excel graph. Professional designers learn to use color coding effectively to make websites, applications ...

For the CMYK color scheme, color specifications must be enclosed in quotation marks. For all other color schemes, the quotes are optional. You can freely intermix color-naming schemes in your programs ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. An amateur mathematician just partially solved a problem that has vexed mathematicians since 1950 ...

In 1950 Edward Nelson, then a student at the University of Chicago, asked the kind of deceptively simple question that can give mathematicians fits for decades. Imagine, he said, a graph—a collection ...

A theorem for coloring a large class of “perfect” mathematical networks could ease the way for a long-sought general coloring proof. Four years ago, the mathematician Maria Chudnovsky faced an all-too ...