Simplify complicated equations with the F-789SGA scientific calculator, part-manufactured from Canon recycled materials, and packed with advanced functions.BenefitsWith hard caseFour-year battery life (under 300 lux environment and 1 hour operation per day)Dual power: solar and replaceable batterySimplifies complicated equations605 advanced functionsHigh-end capabilitySimplify complicated equations with the F-789SGA scientific calculator, part-manufactured from Canon recycled materials, and packed with advanced functions.BenefitsWith hard caseFour-year battery life (under 300 lux environment and 1 hour operation per day)Dual power: solar and replaceable batterySimplifies complicated equations605 advanced functionsHigh-end capability