Typing tips

Implicit multiply works: 2x, 2(x+1).
^ power, ! factorial, sqrt(, abs(.

Store a variable

5*3→x (the → key), or type ->x.

Calculus (CAS)

diff(expr,x) symbolic derivative.
diff(expr,x,2) second derivative.
integral(expr,x,a,b) definite integral.
nderiv(expr,x,point) derivative at a point.
solve(expr,x) or solve(lhs=rhs,x).
simplify(expr), expand(expr), factor(expr) (best-effort, works well for quadratics).

Lists / matrices

[1,2,3] a list. [[1,2],[3,4]] a matrix.
mean([..]), stdev([..]), median([..]), sum([..]).
det(M), inv(M), transpose(M).

Other functions

sin cos tan asin acos atan sinh cosh tanh ln log log2 exp sqrt cbrt abs floor ceil round gcd lcm ncr npr mod min max

About this calculator

Runs 100% locally in your browser — nothing is uploaded anywhere, no account or internet needed after the page loads. It is not an official TI product. It aims to cover the everyday classroom uses of a CAS graphing calculator (arithmetic, graphing, basic calculus, matrices, stats) but is not a pixel-for-pixel clone of TI-Nspire software.