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Every so often, profs use diagrams for their notes, and color-coding the diagram helps keep things straight. However, colored pencils (at least what I've used) dull quickly and never really get sharp.
Anyone know a good alternative? Something easy to use, easy to color structures, and fairly inexpensive?
Thanks. 🙂
Anyone know a good alternative? Something easy to use, easy to color structures, and fairly inexpensive?
Thanks. 🙂