LeoCalculator 2.5
Edit box "Expression" has to contain a string of mathematical expression that is supposed to be calculated.
It can contain:
numbers in with or without decimal point and with or without a power of 10 like 1.2e-2 or 3.E3;
pi in this application is equal to 3.141592653;
basic mathematical operations +,-,*,/;
power of grade operation ^ used like 2^3 = 8;
brackets determining order of operation execution;
elementary mathematical functions: sin,cos,tan,asin,acos,atan,ln,log10,exp,pow10,abs,sqrt; basic statistical functions as sum, mean, sigma (standard deviation) student and trust for calculation probability and trust interval. Arguments of the functions have to be an expression surrounded brackets;
Variables can be declared and edited separately from formula and
can be any combinations of letters and numbers without spaces and reserved words: value expressions as usual are numbers but in most cases it could be mathematical expressions too.
A program to find prime numbers and pairs of primes, to decompose numbers into their prime constituents, to find all factors of any positive integer up to 2,147,483,645, and to plot Erdos-Kac and Palmen Color histograms.
Master the Facts Multiplication is a no-nonsense drill and practice program to aide students in learning multiplication facts.
Select which of the tables you want to practice, and the program will present them as flashcards. See how quickly you can answer and get listed in the hall of fame. Demo limited to 1s, 2s, 3s, 5s and 10s table. Statistics saved about each run.
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