Fix the bug that draw wrong graph after hit twice equal button.
Features:
graph
functionality
-
work with floating point numbers
-
offer the +, -, ×, ÷ basic binary operators.
-
offer the cos(), sin(), tan(), abs(), x^2, x^3, lg(), rand() bacic unary operators.
-
backspace(right side of the display screen) and all clear button
-
click the backspace button "<-" until the last digit left will cause undo.
-
a description screen that shows the calculating steps.
-
add variable using "M" button.
-
using "➝ M" button to set or reset the value of the "M" variable, then recalculate the expressions.
-
using "~" button to generate graph.
appearance -
original ios calculator colors.
-
good screen fit.