Splaks 2Line Engineering Scientific Calculator LCD Display Function Calculator Suitable for School Business 3pack

Splaks 2-Line Engineering Scientific Calculator Advanced Scientific Calculator with 2-line display/240 functions/Large screen/Replay function. Ideal for professional and student use in mathematics, science, algebra, trigonometry, statistics, engineering, chemistry and physics. 3 modes, COMP(Basic Arithmetic Calculations), SD(Standard Deviation), REG(Regression Calculations). 240 functions, support Basic Calculation (a b/c /%/degree,min.,sec./FIX.SCI.RND), Memory Calculation(answer /consecutive /independent ariables /formula storage and repetitive operation), Scientific Function Calculation (sin,cos,tan & inverse /cot,sec,csc /hyperbolic & inverse /log and antilogarithms /Log to base /?, x?, 3?, x², x³, x(-1), X!, x??A?n/m?, C(n/m)... /angle unit conversion /coordinate conversion /EGN /random number), Statistical Calculation (standard deviation /regression calculation near regression). A multi-functional helper for students in middle/high school, can largely raise your efficiency and accuracy. Auto Shut-down: No operation in 5min All steps are clearly stated in the user manual.