"The invention discloses a vision-based multifunctional plotter, which includes a plotting substrate, two vertical axes, a horizontal frame, a horizontal axis, a control hand and a main control mechanism; a Y-axis rack is arranged on the outside of the two vertical axes, and the horizontal There is a Y-axis gear and a Y-axis motor; there is an X-axis rack on the horizontal frame, and an X-axis gear and an X-axis motor on the control hand; the control hand includes a transparent bracket, a drawing pen and a Z-axis motor; the main control mechanism includes a PC machine, camera unit, XY-axis controller and Z-axis controller, the XY-axis controller is connected with the Y-axis motor and the X-axis motor, and the Z-axis controller is connected with the Z-axis motor. The invention uses the camera unit to take a view and take a screenshot, and the drawing pen quickly and accurately draws the corresponding graphics and texts corresponding to the camera unit’s view and screenshot on the drawing substrate, replacing the manual drawing and writing of the teacher on the spot, and can also realize the processing of the sketch It plays a certain practical auxiliary role in teaching and improves the quality of teaching."

Price: Time and effort

Features: Comprehensive and able to do most to all homework tasks

Strengths: Capable of complex thought and understanding

Weaknesses: Able to be distracted/procrastinate, makes calculation errors, takes long amounts of time

Price: 15 free images a month, $0.13 an image after

Features: Able to take a description and create a work of digital art

Strengths: Visually better and faster than most humans, can edit existing images(experimental), able to take complex prompts and make variations

Weaknesses: Doesn’t solve math, limited use per month, only makes digital images 

Price: Charges for showing full solution steps, but not for giving the answer 

Features: Able to take a photo of math problems and automatically solve them

Strengths: Able to solve a wide range of problems and give accurate answers using only a picture 

Weaknesses: Photomath will only tell you the answer, not showing the path to the answer or handwriting them 

Price: Free if you can find space 

Features: Able to write code, essays, music, etc from a prompt 

Strengths: Very versatile and can solve a wide range of answers 

Weaknesses: It will not handwrite the results and explains in overly comprehensive amounts of detail and breaks down the problem into too many parts for math