**Numerari** sets a new standard for ease of use. The **ergonomic keyboards** put keys within easy reach no matter how you hold your **iPad** or **iPad mini**. **Numerari** also makes it simple to copy from the calculation history display to the current calculation with **just one tap.**

**Numerari** makes it simple to graph functions on rectangular and polar grids. You can create **linear-linear, linear-log, log-linear, log-log, linear-decibel, or log-decibel** graphs. Save multiple graph specifications in your history.

**Numerari converts units for any physical quantity**. Pop-up keypads make unit entry so fast that units can be routinely used in your calculations to verify unit consistency. **Numerari** can even suggest units for the answer.

The advanced functions pop-up keypad includes trigonometric, hyperbolic, permutation, combination, Bessel, gamma, factorial, etc. keys that encompass a **wide range of applications.**

The constants pop-up keypad covers areas from basic **physics** and **chemistry** to **electromagnetics** and **quantum mechanics.**

For advanced applications, calculate with **any mixture of rectangular and polar complex numbers.** One tap switches between rectangular and polar as the default answer form. If the last answer was in rectangular form, one tap shows it in polar form and vice versa.

Assign special constants, groups of units, and even entire expressions to user-defined keys with a simple drag and drop. There is no doubt what a user-defined key does since its **assignment is shown on the key.**

Choose between **normal, scientific, and engineering number formatting modes**. Each has adjustable or fixed digits and multiple exponent options. There is even an option for engineering mode to try to **use a metric prefix instead of an exponent.**

You can choose from **sixteen additional color themes**: warm, khaki, outdoors, pastel, orchid, subway tile, sweet, sapphire, chocolate, turquoise, steel, ruby, graphite, emerald, robust, and neutral.

Display a **full screen image** of your calculation history with different background and alignment options. You can show from one to thirty-five calculation results in a history image.