Remember to hit SPACE when you want to keep memory but also want to do another equation. After you've types your numbers, you should see the answer pop up. If you don't, you probably had either huge numbers or very small decimals on more complex operations (i.e. factorial, exponentiation, etc.). It takes the computer a long time to process as you have to repeat other operations in certain ways. It may take from 0 to 100 seconds for it to pop up. This is a scientific calculator with 16 operations: Addition (adding) Subtraction (Addition but reversed) Multiplication (Multiple addition) Division (Multiple subtraction) Modulo (Remainder of division) Square Root (Finds the number that when squared equals the input number) Absolute Value (Finds the distance from zero) Exponentiation (Multiple multiplication) Sine (Trigonometry operation) Cosine (Another trigonometry operation that's hard to explain) Tangent (Once again a trigonometry operation) Logarithm (I have no clue, it's a build in function so yeah) Inverse Sine (Sine but inverted) Inverse Cosine (Cosine but inverted) Inverse Tangent (Tangent but inverted) Factorial (Multiple multiplication but different (i.e. 3! = 1*2*3 = 6)) Sigma (Multiple Addition but different (i.e. 1+2+3... starting number decides which number to start and ending number decides which number to end with) Natural Logarithm (I have no idea, this is like something I never used and I take honor classes so yeah) Random Float (Generates a random decimal from 0 to 1) e to the power (e to an exponent) nPr (Used for statistics) nCr (Also used for statistics) Cube Root (Like cube root but every two is replaced with a three) The following may be added: Fractions (2/4 + 3/5) Functional Index Equations with PEMDAS Parentheses would come with this Exponents with decimals Once I complete all of the above I don't what else to add, but you can give suggestions in the comments, (and no I'm not doing any graphing crap, or like weird algebra equation stuff)
I made this all by myself at 2 am with no inspiration or whatever. I don't know why you'll ever use this but I still think it's cool. Updates: 1.2: Added nPr, nCr, e to the Power, and Cube Roots 1.1: Added Sigma, Natural Logarithm, Random Floats, and cleaned up the menu, decreasing sizes of buttons. Release 1.0: Added Inverse Trigonometric Functions, Factorials, previous inputs and added a few numbers to useful numbers Beta 1.2: Added Trigonometric Functions and Logarithm Beta 1.1: Added Square Roots, Absolute Value, Exponents, and pi and e were added to useful numbers Beta 1.0: Added Subtraction, Multiplication, Division, and Modulo Alpha: Addition only