Software(application) ipi nzuri katika graphs drawing

[apologize]

Habari wakuu,
nilikuwa naomba kujua software ware ipi ambayo ni FREE kupakua katika mtandao ambayo itanisaidia kuchora graphs,hasa za takwimu ambazo sio ngumu ( not complicated mathematics)

 

[Jimmy George]

Word processor huwezi kuunda majedwali na kutengeneza graph mbalimbali?