- de Bruijn's theorem
- debugging routine
- deceleration parameter
- decentralized adaptive control
- decentralized control system
- decentralized disturbance decoupling
- decentralized infinite fixed mode
- decentralized normalization
- decentralized quadratic optimal control
- decentralized stabilization of stochastic large scale system
- decentralized stochastic control
- decentralized switching pattern
- decidability of Boolean algebra
- decidable Boolean algebra
- decidable logic system
- decidable mathematical theory
- decidable problem of degrees' structure
- deciding the stability of limit cycles
- decimal
- decimal fraction
- decimal fraction
- decimal fraction notation
- decimal logarithm
- decimal number
- decimal part function