Stephen Wolfram has announced the free of
the Wolfram Programming LabOn that page, y'all accept a 5-minute video introduction. Alternatively, y'all may right away click at "try it yourself, shift/enter" inwards the bottom left corner in addition to play amongst Mathematica.
It's non actually merely Mathematica. It's the Wolfram Language, something nearly indistinguishable from Mathematica but yesteryear using it, y'all concord that y'all volition usage it instead of English linguistic communication to communicate amongst your relatives also every bit your electronic friends (the gadgets) inwards the future. Well, to a greater extent than seriously, Mathematica is "written in" the Wolfram Language although I don't quite empathize how it industrial plant given their existence nearly identical.
You volition likely overstep away to GetStarted.nb at or then moment. The extension NB stands for the Wolfram notebook. On those lines, y'all may edit the input. Once y'all press shift/enter simultaneously, Mathematica begins to evaluate the delineate of piece of job containing the cursor.
Write Factorial[5]+3, press shift/enter, in addition to y'all volition overstep away 123 immediately.
Even though at that spot are sometimes to a greater extent than convenient alternative spellings (like 1+1, 3*5, 1*^98, x^2, {1,2} Join {3,4}, f[x]/.{x->2}, ...), all functions in addition to procedures may basically survive written every bit FunctionName[arguments,separated,by,commas]. Also, y'all necessitate the lists {1,2,3} which may survive nested into matrices, upward to an arbitrary level. The expose of functions y'all may usage is huge - many of them let numerous options in addition to other things.
The Wolfram Programming Lab allows express functionality without whatsoever registration in addition to or then to a greater extent than full-fledged sense i time y'all register.