Hello, I'd like to use arduino as a transmitter for a signal that's defined with 3equations. But since am new to arduino, I dont really know how to do it,... Am currently using matlab support package for arduino... A little help would be Much appreciated!

Send serial messages to an Uno, then have Uno transmit via VirtualWire using 315/433 MHz transmitter to similarly equipped Uno with receiver;
or use SPI controlled nrf24L01+ transceivers;
or use software serial to have two Uno communicate while both keep their serial port free to talk over USB to a PC;
or use SPI between two Unos;
or use I2C between two Unos;
or …