Calculator for Chemists reads and calculates line by line, ignoring all that appears after the equal sign [=]. The lines which started with # are command lines. With these lines it is possible to change the number format or the angle measurement.
Here is the sample tasks divided in several categories:
== Calculator for Chemists == August 18, 2012 11:28:29 = Basic calculations = 3+3 = 6 5+7+10+2 = 24 12+(20-8)*3+7 = 55 (8+3 = Missing right bracket ')' 12+20-8)*3+7 = Missing left bracket '(' 2+2-9 = -5 0.5*0.6 = 0.3 2.5+2.12+-9*0.8 = -2.58 27/3 = 9 3*5*-7 = -105 9.12e-31*5 = 4.56e-030 9.12e3+5.1e-1 = 9120.51 5.48e-7/5.972e24 = 9.17615539182853e-032 2^3 = 8 2^3/0 = Cannot divide by zero! 8.12e-5/2 = 4.06e-005 8.12e5/2 = 406000 4+5-*-1 = Incorrect syntax 4+5-1*-7 = 16 = Calculate functions = :sin1.5 = 0.997494986604054 :asin0.997494986604054 = 1.49999999999999 :cos-2 = -0.416146836547142 :tan5 = -3.38051500624658 :cot2 = -0.457657554360286 :sin(:pi/2) = 1 :cos:pi = -1 :log1000 = 3 :alog3 = 1000 5! = 120 :ran100 = 6 :int(3.45) = 3 :int(-3.45) = -3 :ln123 = 4.81218435537242 :log5.43e-8 = -7.26520017041115 :log(5-8) = Logarithm of a negative number :log:abs(5-8) = 0.477121254719662 x^2+x = 0 x1 = -1 x2 = 0 x^2+x-7 = 0 x1 = -3.19258240356725 x2 = 2.19258240356725 = Calculate chemical formula = H2SO4 = 98.07848 H2O = 18.01528 Cu(NO3)2 = 187.5558 CH3CH2COOH = 74.07854 ClCH2CH2COHCl = 127.9772 NaBiO3 = 279.96836928 hno3 = HNO3 = 63.01284 na2so4 = Na2SO4 = 142.04213856 CoAsO4 = 197.852395 wrco3 = WRcO3 = Unknown element symbol CuSO4+5H20 = 260.4026 = Command and combine expressions = 5*20 = 100 #mem = 100 :log:mem = 2 #mem+ = 2 73.9/NaNO3 = 0.869466292721835 :mem*3 = 306 #mem- = 306 Pb(NO3)2+2H2O = 367.24036 Al(NO3)2+2H2O = 187.0218986 #fix3 = 187.022 = numbers rounded to three decimal places [Cr(NO3)3]+9*(H2O) = 400.148 [Fe(NO3)3]+9*(H2O) = 403.997 #sci1 = 4.0e+002 = scientific mode with one decimal place (Ni(NO3)2)+6*(H2O) = 2.9e+002 (Mn(NO3)2)+6*(H2O) = 2.9e+002 #auto = 287.039525 = return to automatic mode (Ni(NO3)2)+6*(H2O) = 290.79488 (Mn(NO3)2)+6*(H2O) = 287.039525 :sin2 = 0.909297426825682 #fix3 = 0.909 :sin2 = 0.909 #deg = 0.909 :sin2 = 0.035 #sci5 = 3.48995e-002 #grad = 3.48995e-002 :sin2 = 3.14108e-002 #auto = 0.0314107590781283 #rad = 0.0314107590781283 Ca(NO3)2 = 164.0878 Sr(NO3)2 = 211.6298 104.4/(Mn(NO3)2+6H2O) = 0.363712976462039 NaF = 41.98817248 :intNaF = 41 :logNaF = 1.62312697253926 FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF = 1082.9089824 FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF = Expression is too long
Citing this page:
Generalic, Eni. "C4C Help: Example tasks." EniG. Periodic Table of the Elements. KTF-Split, 27 Oct. 2022. Web. {Date of access}. <https://www.periodni.com/enig/c4c_help/example_tasks.html>.
Articles and tables