Purpose To compare two calculators for toric intraocular lens (IOL) calculation and to evaluate the prediction of refractive outcome. Methods Sixty-four eyes of forty-five patients underwent cataract surgery followed by implantation of a toric intraocular lens (Zeiss Torbi 709 M) calculated by a standard industry calculator using front keratometry values. Prediction error, median absolute err...

BACKGROUND Optimal continuous subcutaneous insulin infusion (CSII) therapy emphasizes the relationship between insulin dose and carbohydrate consumption. One widely used tool (bolus calculator) requires the user to enter discrete carbohydrate values; however, many patients might not estimate carbohydrates accurately. This study assessed carbohydrate estimation accuracy in type 1 diabetes CSII u...

A new electron monitor unit (MU) calculator program called "eMUc" was developed to provide a convenient electron MU calculation platform for the physics and radiotherapy staff in electron radiotherapy. The program was written using the Microsoft Visual Basic.net framework and has a user-friendly front-end window with the following features: (1) Apart from using the well-known polynomial curvefi...

A calculator program has been written to give confidence intervals on branching ratios for rare decay modes (or similar quantities) calculated from the number of events observed, the acceptance factor, the background estimate and the associated errors. Results from different experiments (or different channels from the same experiment) can be combined. The calculator is available in http://www.s...

Calculators have traditional user interfaces that no longer fit with acceptable practice in user interface design. This paper proposes a method for evaluating calculator user interfaces and demonstrates its value on a radically different style of calculator. The method produces a strong correlation between prior competence of the user and the time taken to achieve tasks with a given calculator ...

INTRODUCTION The study was conducted to validate in vivo the Adequacy Calculator, a Microsoft Excel-based program, designed to assess the prescription and delivery of renal replacement therapy in the critical care setting. METHODS The design was a prospective cohort study, set in two intensive care units of teaching hospitals. The participants were 30 consecutive critically ill patients with ...

As graphics calculators are mainly devices for student learning, it is important that curricula and examinations are constructed to incorporate them in a coherent way. Three recent developments in graphics calculators are described and analysed to determine their implications for examinations. Symbolic manipulation on algebraic calculators challenges existing emphases in many examinations and t...

Graphics calculators have the potential to influence the curriculum in several ways, including affecting what is taught, how it is taught and learned and how it is assessed. These relationships are exemplified for the particular case of sequences and series, which frequently appear in mathematics curricula near the end of secondary school and in the early undergraduate years. Attention will foc...

This article introduces the design and implementation of an Android-platform based calculator, which can recognize the formula captured by a mobile phone camera, compute the result, and display it on the screen. This application enables a faster calculation on a mobile device by avoiding inputting the formula to some device. Keywords-formula recognition; OCR; Android

A novel calculator, designed for interactive whiteboards and pen-based devices, provides a better task fit than conventional approaches. The calculator provides a natural, dynamic method of doing calculations by handwriting and using conventional notation. This paper discusses the calcualtor’s underlying design principles, which collectively create a coherent and innovative ‘look and feel.’ The...