ComplexMatrix Plugin provides the ability to create programs that can process complex numbers, real and complex matrices, just like double and integer numbers. It allows users to enter a matrix in a TextArea and read it in with one command. The plugin can also calculate eigenvalues and eigenvectors of symmetric real matrices and Hermitian complex matrices.
Blinged JSON Validator is a free app to validate JSON files with syntax highlighting, whitespace indentation, error messaging, and hotkeys.
