Replace defunct exchange rates source and fix bitcoin exchange rate (libqalculate).Ignore underscore in number (libqalculate).Add units for mean Gregorian and tropical years (libqalculate).Return gcd of numerators divided by lcm of denominators in gcd() with non-integer rational numbers, and vice versa for lcm() (libqalculate).Fix immediate calculation after selecting to-conversion completion.Prefer capitalized function name (over name with underscore), when completing function name.Always add result to history (even if identical to previous) if expression contains a function generating a random number.

Save position of main window even if size has not changed from the default.Restore decimal number base after closing programming keypad.Support for specifying a fixed denominator for display of fractions (e.g.Features include a large library of customizable functions, unit calculations and conversion, symbolic calculations (including integrals and equations), arbitrary precision, uncertainty propagation, interval arithmetic, plotting, and a user-friendly interface (GTK, Qt, and CLI). It is simple to use but provides power and versatility normally reserved for complicated math packages, as well as useful tools for everyday needs (such as currency conversion and percent calculation). Qalculate! is a multi-purpose cross-platform desktop calculator.

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